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Lu, Huayi e6fa411af0 DWS DEV 830.201 version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: Lu, Huayi <luhuayi@huawei.com>
Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
2024-05-16 07:24:04 +00:00

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<a name="EN-US_TOPIC_0000001233510125"></a><a name="EN-US_TOPIC_0000001233510125"></a>
<h1 class="topictitle1">Other Functions</h1>
<div id="body1553151203304"><div class="section" id="EN-US_TOPIC_0000001233510125__section157131426813"><h4 class="sectiontitle">pgxc_pool_check()</h4><p id="EN-US_TOPIC_0000001233510125__p17742133920110">Description: Checks whether the connection data buffered in the pool is consistent with <strong id="EN-US_TOPIC_0000001233510125__b4441144314374">pgxc_node</strong>.</p>
<p id="EN-US_TOPIC_0000001233510125__p1974218391613">Return type: <span id="EN-US_TOPIC_0000001233510125__text13738253202213">boolean</span></p>
<p id="EN-US_TOPIC_0000001233510125__p106378504108">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen10361201319114"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="n">pgxc_pool_check</span><span class="p">();</span>
<span class="w"> </span><span class="n">pgxc_pool_check</span>
<span class="c1">-----------------</span>
<span class="w"> </span><span class="n">t</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section1719418141183"><h4 class="sectiontitle">pgxc_pool_reload()</h4><p id="EN-US_TOPIC_0000001233510125__p1274213392019">Description: Updates the connection information buffered in the pool.</p>
<p id="EN-US_TOPIC_0000001233510125__p874218399112">Return type: <span id="EN-US_TOPIC_0000001233510125__text113391254172212">boolean</span></p>
<p id="EN-US_TOPIC_0000001233510125__p7629013172">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen44736382172"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="n">pgxc_pool_reload</span><span class="p">();</span>
<span class="w"> </span><span class="n">pgxc_pool_reload</span>
<span class="c1">------------------</span>
<span class="w"> </span><span class="n">t</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section381819141135"><h4 class="sectiontitle">pg_pool_validate(clear boolean, co_node_name cstring)</h4><p id="EN-US_TOPIC_0000001233510125__p1474519398114">Description: Clears invalid backend threads on a CN. (These backend threads hold invalid pooler connections to standby DNs.)</p>
<p id="EN-US_TOPIC_0000001233510125__p3745173918116">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section1483118364318"><h4 class="sectiontitle">pg_nodes_memory()</h4><p id="EN-US_TOPIC_0000001233510125__p187458391913">Description: queries the memory usage of all nodes.</p>
<p id="EN-US_TOPIC_0000001233510125__p3745153915115">Return type: record</p>
<p id="EN-US_TOPIC_0000001233510125__p12340557352">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen1983185293614"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span>
<span class="normal">11</span>
<span class="normal">12</span>
<span class="normal">13</span>
<span class="normal">14</span>
<span class="normal">15</span>
<span class="normal">16</span>
<span class="normal">17</span>
<span class="normal">18</span>
<span class="normal">19</span>
<span class="normal">20</span>
<span class="normal">21</span>
<span class="normal">22</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pg_nodes_memory</span><span class="p">();</span>
<span class="w"> </span><span class="n">node_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">used_memory</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">shared_buffer_cache</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">top_context_memory</span>
<span class="c1">----------------------+-------------+------------------------------------+------------------------------</span>
<span class="w"> </span><span class="n">dn_6003_6004</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">353</span><span class="w"> </span><span class="n">MB</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">108</span><span class="w"> </span><span class="n">MB</span><span class="p">(</span><span class="n">Utilization</span><span class="p">:</span><span class="w"> </span><span class="mi">512</span><span class="w"> </span><span class="n">MB</span><span class="o">/</span><span class="mi">21</span><span class="p">.</span><span class="mi">00</span><span class="o">%</span><span class="p">)</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">PgStat</span><span class="w"> </span><span class="n">BackendStatus</span><span class="p">(</span><span class="mi">101</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">TopMemoryContext</span><span class="p">(</span><span class="mi">59</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gs_signal</span><span class="p">(</span><span class="mi">56</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="n">dn_6005_6006</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">353</span><span class="w"> </span><span class="n">MB</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">202</span><span class="w"> </span><span class="n">MB</span><span class="p">(</span><span class="n">Utilization</span><span class="p">:</span><span class="w"> </span><span class="mi">512</span><span class="w"> </span><span class="n">MB</span><span class="o">/</span><span class="mi">39</span><span class="p">.</span><span class="mi">00</span><span class="o">%</span><span class="p">)</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">PgStat</span><span class="w"> </span><span class="n">BackendStatus</span><span class="p">(</span><span class="mi">101</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">TopMemoryContext</span><span class="p">(</span><span class="mi">59</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gs_signal</span><span class="p">(</span><span class="mi">56</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="n">dn_6001_6002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">351</span><span class="w"> </span><span class="n">MB</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">201</span><span class="w"> </span><span class="n">MB</span><span class="p">(</span><span class="n">Utilization</span><span class="p">:</span><span class="w"> </span><span class="mi">512</span><span class="w"> </span><span class="n">MB</span><span class="o">/</span><span class="mi">39</span><span class="p">.</span><span class="mi">00</span><span class="o">%</span><span class="p">)</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">PgStat</span><span class="w"> </span><span class="n">BackendStatus</span><span class="p">(</span><span class="mi">101</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">TopMemoryContext</span><span class="p">(</span><span class="mi">58</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gs_signal</span><span class="p">(</span><span class="mi">56</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="n">cn_5001</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">79</span><span class="w"> </span><span class="n">MB</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">48</span><span class="w"> </span><span class="n">MB</span><span class="p">(</span><span class="n">Utilization</span><span class="p">:</span><span class="w"> </span><span class="mi">256</span><span class="w"> </span><span class="n">MB</span><span class="o">/</span><span class="mi">19</span><span class="p">.</span><span class="mi">00</span><span class="o">%</span><span class="p">)</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">CacheMemoryContext</span><span class="p">(</span><span class="mi">22</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">PgStat</span><span class="w"> </span><span class="n">BackendStatus</span><span class="p">(</span><span class="mi">19</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gs_signal</span><span class="p">(</span><span class="mi">16</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="n">cn_5002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">77</span><span class="w"> </span><span class="n">MB</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">95</span><span class="w"> </span><span class="n">MB</span><span class="p">(</span><span class="n">Utilization</span><span class="p">:</span><span class="w"> </span><span class="mi">256</span><span class="w"> </span><span class="n">MB</span><span class="o">/</span><span class="mi">37</span><span class="p">.</span><span class="mi">00</span><span class="o">%</span><span class="p">)</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">CacheMemoryContext</span><span class="p">(</span><span class="mi">21</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">PgStat</span><span class="w"> </span><span class="n">BackendStatus</span><span class="p">(</span><span class="mi">19</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gs_signal</span><span class="p">(</span><span class="mi">16</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">67</span><span class="w"> </span><span class="n">MB</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">50</span><span class="w"> </span><span class="n">MB</span><span class="p">(</span><span class="n">Utilization</span><span class="p">:</span><span class="w"> </span><span class="mi">256</span><span class="w"> </span><span class="n">MB</span><span class="o">/</span><span class="mi">19</span><span class="p">.</span><span class="mi">00</span><span class="o">%</span><span class="p">)</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">CacheMemoryContext</span><span class="p">(</span><span class="mi">26</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gs_signal</span><span class="p">(</span><span class="mi">16</span><span class="w"> </span><span class="n">MB</span><span class="p">)</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">TopMemoryContext</span><span class="p">(</span><span class="mi">9732</span><span class="w"> </span><span class="n">KB</span><span class="p">)</span>
<span class="p">(</span><span class="mi">18</span><span class="w"> </span><span class="k">rows</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section142251718688"><h4 class="sectiontitle">plan_seed()</h4><p id="EN-US_TOPIC_0000001233510125__p14809103915119">Description: Obtains the seed value of the previous query statement (internal use).</p>
<p id="EN-US_TOPIC_0000001233510125__p12809139215">Return type: integer</p>
<p id="EN-US_TOPIC_0000001233510125__p554115477412">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen314812184213"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="n">plan_seed</span><span class="p">();</span>
<span class="w"> </span><span class="n">plan_seed</span>
<span class="c1">-----------</span>
<span class="w"> </span><span class="mi">0</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section205882571989"><h4 class="sectiontitle">pg_stat_get_env()</h4><p id="EN-US_TOPIC_0000001233510125__p208091391215">Description: Obtains the environment variable information about the current node.</p>
<p id="EN-US_TOPIC_0000001233510125__p188097391213">Return type: record</p>
<p id="EN-US_TOPIC_0000001233510125__p62761261435">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen106651331124312"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pg_stat_get_env</span><span class="p">();</span>
<span class="w"> </span><span class="n">node_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">host</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">process</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">port</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">installpath</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">datapath</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">log_directory</span>
<span class="c1">-----------+-----------+---------+------+------------------+------------------------+--------------------------------------</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">localhost</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28811</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">8000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">app</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">data1</span><span class="o">/</span><span class="n">coordinator</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">log</span><span class="o">/</span><span class="n">Ruby</span><span class="o">/</span><span class="n">pg_log</span><span class="o">/</span><span class="n">cn_5003</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section5368674918"><h4 class="sectiontitle">pg_stat_get_thread()</h4><p id="EN-US_TOPIC_0000001233510125__p1781110392014">Description: Provides information about the status of all threads under the current node.</p>
<p id="EN-US_TOPIC_0000001233510125__p138111939119">Return type: record</p>
<p id="EN-US_TOPIC_0000001233510125__p12798848141013">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen10310113315110"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span>
<span class="normal">11</span>
<span class="normal">12</span>
<span class="normal">13</span>
<span class="normal">14</span>
<span class="normal">15</span>
<span class="normal">16</span>
<span class="normal">17</span>
<span class="normal">18</span>
<span class="normal">19</span>
<span class="normal">20</span>
<span class="normal">21</span>
<span class="normal">22</span>
<span class="normal">23</span>
<span class="normal">24</span>
<span class="normal">25</span>
<span class="normal">26</span>
<span class="normal">27</span>
<span class="normal">28</span>
<span class="normal">29</span>
<span class="normal">30</span>
<span class="normal">31</span>
<span class="normal">32</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pg_stat_get_thread</span><span class="p">();</span>
<span class="w"> </span><span class="n">node_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">pid</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">lwpid</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">thread_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">creation_time</span>
<span class="c1">-----------+-----------------+---------+--------------------+-------------------------------</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471515199536</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28930</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">JobScheduler</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">086885</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471498418224</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28931</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">StatCollector</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2000</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">01</span><span class="w"> </span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471464855600</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28933</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">WDRSnapshot</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">086775</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471380949040</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28938</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">WorkloadMonitor</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">074454</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471414511664</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28936</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">workload</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">075457</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471364167728</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28939</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">WLMArbiter</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">076753</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471397730352</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28937</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">CalculateSpaceInfo</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">078981</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470777964592</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1933534</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">wlm</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">13</span><span class="w"> </span><span class="mi">08</span><span class="p">:</span><span class="mi">01</span><span class="p">:</span><span class="mi">32</span><span class="p">.</span><span class="mi">350808</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470889130032</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1786064</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">cn_5002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">13</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">01</span><span class="p">:</span><span class="mi">50</span><span class="p">.</span><span class="mi">173568</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471299672112</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">29006</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">cm_agent</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">18</span><span class="p">.</span><span class="mi">03415</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471222065200</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">29970</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">cn_5002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">39</span><span class="p">.</span><span class="mi">694702</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471238846512</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1897367</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">cn_5002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">20</span><span class="p">:</span><span class="mi">01</span><span class="p">:</span><span class="mi">40</span><span class="p">.</span><span class="mi">611019</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470905911344</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">30053</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">cn_5002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">44</span><span class="p">.</span><span class="mi">065774</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470410537008</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1933902</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">cn_5002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">13</span><span class="w"> </span><span class="mi">08</span><span class="p">:</span><span class="mi">01</span><span class="p">:</span><span class="mi">38</span><span class="p">.</span><span class="mi">972574</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470872348720</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1880248</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">cn_5001</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">13</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">39</span><span class="p">:</span><span class="mi">24</span><span class="p">.</span><span class="mi">231418</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471316453424</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1883059</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">cn_5001</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">13</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">40</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">885667</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470845081648</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1305053</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">cn_5001</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">13</span><span class="w"> </span><span class="mi">03</span><span class="p">:</span><span class="mi">40</span><span class="p">:</span><span class="mi">17</span><span class="p">.</span><span class="mi">366784</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470700357680</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1500466</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">wlm</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">13</span><span class="w"> </span><span class="mi">05</span><span class="p">:</span><span class="mi">02</span><span class="p">:</span><span class="mi">05</span><span class="p">.</span><span class="mi">714544</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470473455664</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1883060</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">cn_5001</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">13</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">40</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">885963</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470717138992</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">32065</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">cm_agent</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">04</span><span class="p">:</span><span class="mi">23</span><span class="p">.</span><span class="mi">906691</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470807328816</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1977925</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gsql</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">13</span><span class="w"> </span><span class="mi">08</span><span class="p">:</span><span class="mi">20</span><span class="p">:</span><span class="mi">04</span><span class="p">.</span><span class="mi">509437</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470683576368</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1835242</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">cn_5001</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">13</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">20</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">549546</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471584946224</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28927</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Background</span><span class="w"> </span><span class="n">writer</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">065631</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471633184816</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28926</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">CheckPointer</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">065872</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471548762160</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28928</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Wal</span><span class="w"> </span><span class="n">Writer</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">066366</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471448074288</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28934</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">TwoPhase</span><span class="w"> </span><span class="n">Cleaner</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">071172</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281471431292976</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28935</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">LWLock</span><span class="w"> </span><span class="n">Monitor</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">03</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">072897</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470666795056</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1210459</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">CBM</span><span class="w"> </span><span class="n">Writer</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">15</span><span class="p">:</span><span class="mi">16</span><span class="p">:</span><span class="mi">05</span><span class="p">.</span><span class="mi">543143</span><span class="o">+</span><span class="mi">00</span>
<span class="p">(</span><span class="mi">28</span><span class="w"> </span><span class="k">rows</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section199908175917"><h4 class="sectiontitle">pgxc_get_os_threads()</h4><p id="EN-US_TOPIC_0000001233510125__p19811113914116">Description: Provides information about the status of threads under all normal nodes in a cluster.</p>
<p id="EN-US_TOPIC_0000001233510125__p178126391910">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section15610395911"><h4 class="sectiontitle">pg_stat_get_sql_count()</h4><p id="EN-US_TOPIC_0000001233510125__p20812143914112">Description: Provides statistics on the number of <strong id="EN-US_TOPIC_0000001233510125__b120575717451">SELECT</strong>/<strong id="EN-US_TOPIC_0000001233510125__b1215119154617">UPDATE</strong>/<strong id="EN-US_TOPIC_0000001233510125__b198671731469">INSERT</strong>/<strong id="EN-US_TOPIC_0000001233510125__b96032624614">DELETE</strong>/<strong id="EN-US_TOPIC_0000001233510125__b564918117463">MERGE INTO</strong> statements executed by all users on the current node, response time, and the number of DDL, DML, and DCL statements. </p>
<p id="EN-US_TOPIC_0000001233510125__p2812739516">Return type: record</p>
<p id="EN-US_TOPIC_0000001233510125__p47674361813">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen147326383185"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span>
<span class="normal">11</span>
<span class="normal">12</span>
<span class="normal">13</span>
<span class="normal">14</span>
<span class="normal">15</span>
<span class="normal">16</span>
<span class="normal">17</span>
<span class="normal">18</span>
<span class="normal">19</span>
<span class="normal">20</span>
<span class="normal">21</span>
<span class="normal">22</span>
<span class="normal">23</span>
<span class="normal">24</span>
<span class="normal">25</span>
<span class="normal">26</span>
<span class="normal">27</span>
<span class="normal">28</span>
<span class="normal">29</span>
<span class="normal">30</span>
<span class="normal">31</span>
<span class="normal">32</span>
<span class="normal">33</span>
<span class="normal">34</span>
<span class="normal">35</span>
<span class="normal">36</span>
<span class="normal">37</span>
<span class="normal">38</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pg_stat_get_sql_count</span><span class="p">();</span>
<span class="w"> </span><span class="n">node_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">user_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">select_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">update_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">insert_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">delete_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">mergeinto_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">ddl_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">dml_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">dcl_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">total_select_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">avg_select_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">max_select_el</span>
<span class="n">apse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">min_select_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">total_update_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">avg_update_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">max_update_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">min_update_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">total_insert_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">avg_insert_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">max_insert_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">min_insert_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">total_delete_ela</span>
<span class="n">pse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">avg_delete_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">max_delete_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">min_delete_elapse</span>
<span class="c1">-----------+------------------------+--------------+--------------+--------------+--------------+-----------------+-----------+-----------+-----------+---------------------+-------------------+--------------</span>
<span class="c1">-----+-------------------+---------------------+-------------------+-------------------+-------------------+---------------------+-------------------+-------------------+-------------------+-----------------</span>
<span class="c1">----+-------------------+-------------------+-------------------</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gs_role_read_all_stats</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gs_role_signal_backend</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gs_role_analyze_any</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gs_role_vacuum_any</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">dbadmin</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">641</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">18</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">651</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">19236129</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">30009</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">814</span>
<span class="mi">0206</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">357</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">70595</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">23531</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">62102</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2750</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Ruby</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2078187</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3263</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22841</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10436</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2242517</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">16979</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3753441293</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1806</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">52</span>
<span class="mi">6891</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">191</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">67483165</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20681</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">38076</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">15444</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">291598980</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">12766</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">35376</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3791</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">joe</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">sea</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">192</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">205</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2561878</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">13343</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">68</span>
<span class="mi">1866</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">388</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">11349</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2269</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3241</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1521</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">19</span>
<span class="mi">255</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">6418</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10656</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2798</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">jj</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">u1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">4</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3712</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1856</span><span class="w"> </span><span class="o">|</span>
<span class="mi">2407</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1305</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">5366</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2683</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3359</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2007</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span>
<span class="p">(</span><span class="mi">10</span><span class="w"> </span><span class="k">rows</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section12554551198"><h4 class="sectiontitle">pgxc_get_sql_count()</h4><p id="EN-US_TOPIC_0000001233510125__p6813839817">Description: Provides statistics on the number of <strong id="EN-US_TOPIC_0000001233510125__b19259114594715">SELECT</strong>/<strong id="EN-US_TOPIC_0000001233510125__b12259445194717">UPDATE</strong>/<strong id="EN-US_TOPIC_0000001233510125__b17260645144718">INSERT</strong>/<strong id="EN-US_TOPIC_0000001233510125__b16261134513476">DELETE</strong>/<strong id="EN-US_TOPIC_0000001233510125__b19261114564716">MERGE INTO</strong> statements executed by all users on all nodes of the current cluster, response time, and the number of DDL, DML, and DCL statements.</p>
<p id="EN-US_TOPIC_0000001233510125__p88139392011">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section86212257105"><h4 class="sectiontitle">pgxc_get_workload_sql_count()</h4><p id="EN-US_TOPIC_0000001233510125__p108131939217">Description: Provides statistics on the number of <strong id="EN-US_TOPIC_0000001233510125__b14249656124713">SELECT</strong>/<strong id="EN-US_TOPIC_0000001233510125__b102490569471">UPDATE</strong>/<strong id="EN-US_TOPIC_0000001233510125__b5249656204718">INSERT</strong>/<strong id="EN-US_TOPIC_0000001233510125__b724955684713">DELETE</strong> statements executed in all workload Cgroup on all CNs of the current cluster and the number of DDL, DML, and DCL statements.</p>
<p id="EN-US_TOPIC_0000001233510125__p981310398110">Return type: record</p>
<p id="EN-US_TOPIC_0000001233510125__p11223913162011">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen1021517284206"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span>
<span class="normal">6</span>
<span class="normal">7</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pgxc_get_workload_sql_count</span><span class="p">();</span>
<span class="w"> </span><span class="n">node_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">workload</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">select_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">update_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">insert_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">delete_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">ddl_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">dml_count</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">dcl_count</span>
<span class="c1">-----------+--------------+--------------+--------------+--------------+--------------+-----------+-----------+-----------</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">default_pool</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2079352</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3264</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22858</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10460</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2243738</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">16988</span>
<span class="w"> </span><span class="n">cn_5001</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">default_pool</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2201345</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">9</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10474</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2359633</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10465</span>
<span class="w"> </span><span class="n">cn_5002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">default_pool</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3784696</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">103106</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">136</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10438</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">4039090</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10498</span>
<span class="p">(</span><span class="mi">3</span><span class="w"> </span><span class="k">rows</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section5758737161010"><h4 class="sectiontitle">pgxc_get_workload_sql_elapse_time()</h4><p id="EN-US_TOPIC_0000001233510125__p118141339711">Description: Provides statistics on response time of <strong id="EN-US_TOPIC_0000001233510125__b163719332530">SELECT</strong>/<strong id="EN-US_TOPIC_0000001233510125__b96376339534">UPDATE</strong>/<strong id="EN-US_TOPIC_0000001233510125__b16637933125310">INSERT</strong>/<strong id="EN-US_TOPIC_0000001233510125__b18637103365317">DELETE</strong> statements executed in all workload Cgroup on all CNs of the current cluster.</p>
<p id="EN-US_TOPIC_0000001233510125__p681416390115">Return type: record</p>
<p id="EN-US_TOPIC_0000001233510125__p184811474212">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen18347713227"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span>
<span class="normal">11</span>
<span class="normal">12</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pgxc_get_workload_sql_elapse_time</span><span class="p">();</span>
<span class="w"> </span><span class="n">node_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">workload</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">total_select_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">max_select_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">min_select_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">avg_select_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">total_update_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">max_update_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">min_update_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">avg_update_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">total_insert_el</span>
<span class="n">apse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">max_insert_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">min_insert_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">avg_insert_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">total_delete_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">max_delete_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">min_delete_elapse</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">avg_delete_elapse</span>
<span class="c1">-----------+--------------+---------------------+-------------------+-------------------+-------------------+---------------------+-------------------+-------------------+-------------------+----------------</span>
<span class="c1">-----+-------------------+-------------------+-------------------+---------------------+-------------------+-------------------+-------------------</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">default_pool</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3776420502</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">8140206</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1816</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">67505332</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">38076</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20682</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">29178</span>
<span class="mi">9830</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">62102</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">12765</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">19255</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10656</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">6418</span>
<span class="w"> </span><span class="n">cn_5001</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">default_pool</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">8599339496</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3390159</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">3906</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">52789</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">18207</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">5865</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span>
<span class="w"> </span><span class="n">cn_5002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">default_pool</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">40483096221</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2178781</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10695</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">13310238</span>
<span class="mi">8148</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2398854</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1290752</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2072031</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">52877</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">15236</span>
<span class="p">(</span><span class="mi">3</span><span class="w"> </span><span class="k">rows</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section1258164916106"><h4 class="sectiontitle">get_instr_unique_sql()</h4><p id="EN-US_TOPIC_0000001233510125__p1181523911119">Description: Provides information about Unique SQL statistics collected on the current node. If the node is a CN, the system returns the complete information about the Unique SQL statistics collected on the CN. That is, the system collects and summarizes the information about the Unique SQL statistics on other CNs and DNs. If the node is a DN, the Unique SQL statistics on the DN is returned. For details, see the <strong id="EN-US_TOPIC_0000001233510125__b53247402917">GS_INSTR_UNIQUE_SQL</strong> view.</p>
<p id="EN-US_TOPIC_0000001233510125__p3815133912116">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section86377131112"><h4 class="sectiontitle">reset_instr_unique_sql(cstring, cstring, INT8)</h4><p id="EN-US_TOPIC_0000001233510125__p198151339210">Description: Clears collected Unique SQL statistics. The input parameters are described as follows:</p>
<ul id="EN-US_TOPIC_0000001233510125__ul1181515394115"><li id="EN-US_TOPIC_0000001233510125__li9815439513"><strong id="EN-US_TOPIC_0000001233510125__b39261410950">GLOBAL</strong>/<strong id="EN-US_TOPIC_0000001233510125__b11181131554">LOCAL</strong>: Data is cleared from all nodes or the current node.</li><li id="EN-US_TOPIC_0000001233510125__li681613914110"><strong id="EN-US_TOPIC_0000001233510125__b194871224351">ALL</strong>/<strong id="EN-US_TOPIC_0000001233510125__b1072312279518">BY_USERID</strong>/<strong id="EN-US_TOPIC_0000001233510125__b13156113114513">BY_CNID</strong>/<strong id="EN-US_TOPIC_0000001233510125__b62066341753">BY_GUC</strong>: <strong id="EN-US_TOPIC_0000001233510125__b599714615518">ALL</strong> indicates that all data is cleared. <strong id="EN-US_TOPIC_0000001233510125__b169801658659">BY_USERID/BY_CNID</strong> indicates that data is cleared by <strong id="EN-US_TOPIC_0000001233510125__b16145179619">USERID</strong> or <strong id="EN-US_TOPIC_0000001233510125__b1954219868">CNID</strong>. <strong id="EN-US_TOPIC_0000001233510125__b196905281566">BY_GUC</strong> indicates that the clearance operation is caused by the decrease of the value of the GUC parameter <strong id="EN-US_TOPIC_0000001233510125__b1734019439613">instr_unique_sql_count</strong>.</li><li id="EN-US_TOPIC_0000001233510125__li148166392013">The third parameter corresponds to the second parameter. The parameter is invalid for <strong id="EN-US_TOPIC_0000001233510125__b2344173413718">ALL</strong>/<strong id="EN-US_TOPIC_0000001233510125__b19613143714711">BY_GUC</strong>.</li></ul>
<p id="EN-US_TOPIC_0000001233510125__p581610392112">Return type: bool</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section164681150191210"><h4 class="sectiontitle">pgxc_get_instr_unique_sql()</h4><p id="EN-US_TOPIC_0000001233510125__p2081715393118">Description: Provides complete information about Unique SQL statistics collected on all CNs in a cluster. This function can be executed only on CNs.</p>
<p id="EN-US_TOPIC_0000001233510125__p581733911114">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section1252618132139"><h4 class="sectiontitle">get_instr_unique_sql_remote_cns()</h4><p id="EN-US_TOPIC_0000001233510125__p2081714391913">Description: Provides complete information about Unique SQL statements collected on all CNs in the cluster, except the CN on which the function is being executed. This function can be executed only on CNs.</p>
<p id="EN-US_TOPIC_0000001233510125__p178171391315">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section10694172713138"><h4 class="sectiontitle">pgxc_get_node_env()</h4><p id="EN-US_TOPIC_0000001233510125__p58181391514">Description: Provides the environment variable information about all nodes in a cluster.</p>
<p id="EN-US_TOPIC_0000001233510125__p78180391313">Return type: record</p>
<p id="EN-US_TOPIC_0000001233510125__p1958151717270">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen20703104802716"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pgxc_get_node_env</span><span class="p">();</span>
<span class="w"> </span><span class="n">node_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">host</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">process</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">port</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">installpath</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">datapath</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">log_directory</span>
<span class="c1">--------------+---------------+---------+-------+------------------+---------------------------+--------------------------------------</span>
<span class="w"> </span><span class="n">dn_6001_6002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">172</span><span class="p">.</span><span class="mi">16</span><span class="p">.</span><span class="mi">102</span><span class="p">.</span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">24443</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">40000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">app</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">data1</span><span class="o">/</span><span class="n">h0dn1</span><span class="o">/</span><span class="n">primary0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">log</span><span class="o">/</span><span class="n">Ruby</span><span class="o">/</span><span class="n">pg_log</span><span class="o">/</span><span class="n">dn_6001</span>
<span class="w"> </span><span class="n">dn_6003_6004</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">172</span><span class="p">.</span><span class="mi">16</span><span class="p">.</span><span class="mi">70</span><span class="p">.</span><span class="mi">17</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">21823</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">40000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">app</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">data1</span><span class="o">/</span><span class="n">h1dn1</span><span class="o">/</span><span class="n">primary0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">log</span><span class="o">/</span><span class="n">Ruby</span><span class="o">/</span><span class="n">pg_log</span><span class="o">/</span><span class="n">dn_6003</span>
<span class="w"> </span><span class="n">dn_6005_6006</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">172</span><span class="p">.</span><span class="mi">16</span><span class="p">.</span><span class="mi">120</span><span class="p">.</span><span class="mi">50</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22331</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">40000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">app</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">data1</span><span class="o">/</span><span class="n">h2dn1</span><span class="o">/</span><span class="n">primary0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">log</span><span class="o">/</span><span class="n">Ruby</span><span class="o">/</span><span class="n">pg_log</span><span class="o">/</span><span class="n">dn_6005</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">localhost</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">28811</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">8000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">app</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">data1</span><span class="o">/</span><span class="n">coordinator</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">log</span><span class="o">/</span><span class="n">Ruby</span><span class="o">/</span><span class="n">pg_log</span><span class="o">/</span><span class="n">cn_5003</span>
<span class="w"> </span><span class="n">cn_5001</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">172</span><span class="p">.</span><span class="mi">16</span><span class="p">.</span><span class="mi">102</span><span class="p">.</span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">30873</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">8000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">app</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">data1</span><span class="o">/</span><span class="n">coordinator</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">log</span><span class="o">/</span><span class="n">Ruby</span><span class="o">/</span><span class="n">pg_log</span><span class="o">/</span><span class="n">cn_5001</span>
<span class="w"> </span><span class="n">cn_5002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">172</span><span class="p">.</span><span class="mi">16</span><span class="p">.</span><span class="mi">70</span><span class="p">.</span><span class="mi">17</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">29229</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">8000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">app</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">data1</span><span class="o">/</span><span class="n">coordinator</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">/</span><span class="n">DWS</span><span class="o">/</span><span class="n">manager</span><span class="o">/</span><span class="n">log</span><span class="o">/</span><span class="n">Ruby</span><span class="o">/</span><span class="n">pg_log</span><span class="o">/</span><span class="n">cn_5002</span>
<span class="p">(</span><span class="mi">6</span><span class="w"> </span><span class="k">rows</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section85422125148"><h4 class="sectiontitle">pv_compute_pool_workload()</h4><p id="EN-US_TOPIC_0000001233510125__p16836143915113">Description: Provides the current load information about computing Node Groups on cloud.</p>
<p id="EN-US_TOPIC_0000001233510125__p19837143913117">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section3611232101420"><h4 class="sectiontitle">pg_stat_get_status(tid, num_node_display)</h4><p id="EN-US_TOPIC_0000001233510125__p17837123919117">Description: Queries for the blocking and waiting status of the backend threads and auxiliary threads in the current instance. For details about the returned results, see the PG_THREAD_WAIT_STATUS view. The input parameters are described as follows:</p>
<ul id="EN-US_TOPIC_0000001233510125__ul188371392118"><li id="EN-US_TOPIC_0000001233510125__li8837539310"><strong id="EN-US_TOPIC_0000001233510125__b63524113510">tid</strong>: thread ID, which is of the bigint type. If this parameter is null, the waiting statuses of all backend threads and auxiliary threads are returned. Otherwise, only the waiting statuses of threads with the specified IDs are returned.</li><li id="EN-US_TOPIC_0000001233510125__li8838239614"><strong id="EN-US_TOPIC_0000001233510125__b6908831135218">num_node_display</strong>: integer type. Specifies the maximum number of waiting nodes displayed in the <strong id="EN-US_TOPIC_0000001233510125__b788814254197">wait_status</strong> column for records whose waiting status is <strong id="EN-US_TOPIC_0000001233510125__b3940959171919">wait node</strong>.<ul id="EN-US_TOPIC_0000001233510125__ul198381039912"><li id="EN-US_TOPIC_0000001233510125__li15838183910116">If this parameter is left empty or set to a value less than or equal to <strong id="EN-US_TOPIC_0000001233510125__b34014128234">0</strong>, only one waiting node is displayed.</li><li id="EN-US_TOPIC_0000001233510125__li28382391318">If the value is greater than <strong id="EN-US_TOPIC_0000001233510125__b1092451992311">20</strong>, a maximum number of nodes can be displayed is <strong id="EN-US_TOPIC_0000001233510125__b280195312314">20</strong>.</li><li id="EN-US_TOPIC_0000001233510125__li983983914117">If the value is greater than <strong id="EN-US_TOPIC_0000001233510125__b1467381411265">0</strong> and less than or equal to <strong id="EN-US_TOPIC_0000001233510125__b15000181268">20</strong>, the smaller value between <strong id="EN-US_TOPIC_0000001233510125__b5689135092619">num_node_display</strong> and the actual number of waiting nodes is displayed. Use the <strong id="EN-US_TOPIC_0000001233510125__b992217182274">SELECT * from pg_stat_get_status(NULL, 10)</strong> query for example. If the number of waiting nodes is greater than <strong id="EN-US_TOPIC_0000001233510125__b1225142811273">10</strong>, the names of only 10 nodes are displayed randomly. If the number of waiting nodes is less than or equal to <strong id="EN-US_TOPIC_0000001233510125__b19571512913">10</strong>, the names of all waiting nodes are displayed. If the number of waiting nodes is greater than the number of displayed nodes, the displayed node names are randomly selected.</li></ul>
</li></ul>
<p id="EN-US_TOPIC_0000001233510125__p18391839615">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section166801645121419"><h4 class="sectiontitle">pgxc_get_thread_wait_status(num_node_display)</h4><p id="EN-US_TOPIC_0000001233510125__p98401639211">Description: Queries for the call hierarchy between threads generated by all SQL statements on each node in a cluster, as well as the block waiting status of each thread. For details about the returned results, see the PGXC_THREAD_WAIT_STATUS view. The type and meaning of the input parameter <strong id="EN-US_TOPIC_0000001233510125__b10594194210310">num_node_display</strong> are the same as those of the <strong id="EN-US_TOPIC_0000001233510125__b929913494310">pg_stat_get_status</strong> function.</p>
<p id="EN-US_TOPIC_0000001233510125__p684010398112">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section6206613121513"><h4 class="sectiontitle">pgxc_os_run_info()</h4><p id="EN-US_TOPIC_0000001233510125__p138401439516">Description: Obtains the running status of the operating system on each node in a cluster. For details about the returned results, see "System Catalogs &gt; System Views &gt;PV_OS_RUN_INFO" in the <em id="EN-US_TOPIC_0000001233510125__i275694717420">Developer Guide</em>.</p>
<p id="EN-US_TOPIC_0000001233510125__p1684153916114">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section674816244159"><h4 class="sectiontitle">get_instr_wait_event()</h4><p id="EN-US_TOPIC_0000001233510125__p184153918110">Description: obtains the waiting status and events of the current instance. For details about the returned results, see "System Catalogs &gt; System Views &gt; GS_WAIT_EVENTS" in the <em id="EN-US_TOPIC_0000001233510125__i104784236513">Developer Guide</em>. If the GUC parameter <strong id="EN-US_TOPIC_0000001233510125__b3518201283010">enable_track_wait_event</strong> is <strong id="EN-US_TOPIC_0000001233510125__b18887191713306">off</strong>, this function returns <strong id="EN-US_TOPIC_0000001233510125__b92072456356">0</strong>.</p>
<p id="EN-US_TOPIC_0000001233510125__p38411839315">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section5480143451510"><h4 class="sectiontitle">pgxc_wait_events()</h4><p id="EN-US_TOPIC_0000001233510125__p1842439818">Description: queries statistics about waiting status and events on each node in a cluster. For details about the returned results, see "System Catalogs &gt; System Views &gt; PGXC_WAIT_EVENTS" in the <em id="EN-US_TOPIC_0000001233510125__i810244010411">Developer Guide</em>. If the GUC parameter <strong id="EN-US_TOPIC_0000001233510125__b614613473">enable_track_wait_event</strong> is <strong id="EN-US_TOPIC_0000001233510125__b475542926">off</strong>, this function returns <strong id="EN-US_TOPIC_0000001233510125__b1266580895">0</strong>.</p>
<p id="EN-US_TOPIC_0000001233510125__p1884215397112">Return type: record</p>
<p id="EN-US_TOPIC_0000001233510125__p2071812401334"></p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section5355172161618"><h4 class="sectiontitle">pgxc_stat_bgwriter()</h4><p id="EN-US_TOPIC_0000001233510125__p1684212395115">Description: queries statistics about backend write processes on each node in a cluster. For details about the returned results, see "System Catalogs &gt; System Views &gt; PG_STAT_BGWRITER" in the <em id="EN-US_TOPIC_0000001233510125__i553841125019">Developer Guide</em>.</p>
<p id="EN-US_TOPIC_0000001233510125__p8842153911113">Return type: record</p>
<p id="EN-US_TOPIC_0000001233510125__p25549117358">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen44731337143514"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span>
<span class="normal">11</span>
<span class="normal">12</span>
<span class="normal">13</span>
<span class="normal">14</span>
<span class="normal">15</span>
<span class="normal">16</span>
<span class="normal">17</span>
<span class="normal">18</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pgxc_stat_bgwriter</span><span class="p">();</span>
<span class="w"> </span><span class="n">node_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">checkpoints_timed</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">checkpoints_req</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">checkpoint_write_time</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">checkpoint_sync_time</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">buffers_checkpoint</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">buffers_clean</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">maxwritten_clean</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">buffers_backend</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">buffers_backend_fsync</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">buffers_</span>
<span class="n">alloc</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">stats_reset</span>
<span class="c1">--------------+-------------------+-----------------+-----------------------+----------------------+--------------------+---------------+------------------+-----------------+-----------------------+---------</span>
<span class="c1">------+------------------------</span>
<span class="w"> </span><span class="n">dn_6001_6002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2000</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">01</span><span class="w"> </span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">dn_6003_6004</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2000</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">01</span><span class="w"> </span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">dn_6005_6006</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2000</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">01</span><span class="w"> </span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2000</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">01</span><span class="w"> </span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5001</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2000</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">01</span><span class="w"> </span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="o">+</span><span class="mi">00</span>
<span class="w"> </span><span class="n">cn_5002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2000</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">01</span><span class="w"> </span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="o">+</span><span class="mi">00</span>
<span class="p">(</span><span class="mi">6</span><span class="w"> </span><span class="k">rows</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section1557161881616"><h4 class="sectiontitle">pgxc_stat_replication()</h4><p id="EN-US_TOPIC_0000001233510125__p58431391119">Description: queries information about the log synchronization status on each node in a cluster, such as the location where the logs are sent and received. For details about the returned results, see "System Catalogs &gt; System Views &gt; PG_STAT_REPLICATION" in the <em id="EN-US_TOPIC_0000001233510125__i2493181212534">Developer Guide</em>.</p>
<p id="EN-US_TOPIC_0000001233510125__p15843839314">Return type: record</p>
<p id="EN-US_TOPIC_0000001233510125__p146292015374">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen250543213715"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span>
<span class="normal">11</span>
<span class="normal">12</span>
<span class="normal">13</span>
<span class="normal">14</span>
<span class="normal">15</span>
<span class="normal">16</span>
<span class="normal">17</span>
<span class="normal">18</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pgxc_stat_replication</span><span class="p">();</span>
<span class="w"> </span><span class="n">node_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">pid</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">usesysid</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">usename</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">application_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">client_addr</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">client_hostname</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">client_port</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">backend_start</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">state</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">sender_sent_location</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">receiver_wri</span>
<span class="n">te_location</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">receiver_flush_location</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">receiver_replay_location</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">sync_priority</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">sync_state</span>
<span class="c1">--------------+-----------------+----------+---------+------------------------+---------------+-----------------+-------------+-------------------------------+-----------+----------------------+-------------</span>
<span class="c1">------------+-------------------------+--------------------------+---------------+------------</span>
<span class="w"> </span><span class="n">dn_6001_6002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281469637695536</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Ruby</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">WalSender</span><span class="w"> </span><span class="k">to</span><span class="w"> </span><span class="n">Standby</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">172</span><span class="p">.</span><span class="mi">16</span><span class="p">.</span><span class="mi">70</span><span class="p">.</span><span class="mi">17</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">26084</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">01</span><span class="p">:</span><span class="mi">27</span><span class="p">.</span><span class="mi">348647</span><span class="o">+</span><span class="mi">00</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Streaming</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4940</span><span class="n">D6B8</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4940</span><span class="n">D6B8</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4940</span><span class="n">D6B8</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4940</span><span class="n">D6B8</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Sync</span>
<span class="w"> </span><span class="n">dn_6001_6002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281469304735792</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Ruby</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">WalSender</span><span class="w"> </span><span class="k">to</span><span class="w"> </span><span class="n">Secondary</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">172</span><span class="p">.</span><span class="mi">16</span><span class="p">.</span><span class="mi">120</span><span class="p">.</span><span class="mi">50</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">35214</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">01</span><span class="p">:</span><span class="mi">29</span><span class="p">.</span><span class="mi">51929</span><span class="o">+</span><span class="mi">00</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Streaming</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4000000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4000000</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4000000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4000000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Sync</span>
<span class="w"> </span><span class="n">dn_6003_6004</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281469634050096</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Ruby</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">WalSender</span><span class="w"> </span><span class="k">to</span><span class="w"> </span><span class="n">Standby</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">172</span><span class="p">.</span><span class="mi">16</span><span class="p">.</span><span class="mi">120</span><span class="p">.</span><span class="mi">50</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">13072</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">01</span><span class="p">:</span><span class="mi">26</span><span class="p">.</span><span class="mi">28706</span><span class="o">+</span><span class="mi">00</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Streaming</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">493</span><span class="n">EF000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">493</span><span class="n">EF000</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">493</span><span class="n">EF000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">493</span><span class="n">EF000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Sync</span>
<span class="w"> </span><span class="n">dn_6003_6004</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281469563295792</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Ruby</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">WalSender</span><span class="w"> </span><span class="k">to</span><span class="w"> </span><span class="n">Secondary</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">172</span><span class="p">.</span><span class="mi">16</span><span class="p">.</span><span class="mi">102</span><span class="p">.</span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">55068</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">01</span><span class="p">:</span><span class="mi">29</span><span class="p">.</span><span class="mi">310595</span><span class="o">+</span><span class="mi">00</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Streaming</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4000000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4000000</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4000000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4000000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Sync</span>
<span class="w"> </span><span class="n">dn_6005_6006</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470349690928</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Ruby</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">WalSender</span><span class="w"> </span><span class="k">to</span><span class="w"> </span><span class="n">Standby</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">172</span><span class="p">.</span><span class="mi">16</span><span class="p">.</span><span class="mi">102</span><span class="p">.</span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">40376</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">01</span><span class="p">:</span><span class="mi">26</span><span class="p">.</span><span class="mi">768434</span><span class="o">+</span><span class="mi">00</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Streaming</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">49415</span><span class="n">A70</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">49415</span><span class="n">A70</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">49415</span><span class="n">A70</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">49415</span><span class="n">A70</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Sync</span>
<span class="w"> </span><span class="n">dn_6005_6006</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">281470010435632</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">10</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Ruby</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">WalSender</span><span class="w"> </span><span class="k">to</span><span class="w"> </span><span class="n">Secondary</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">172</span><span class="p">.</span><span class="mi">16</span><span class="p">.</span><span class="mi">70</span><span class="p">.</span><span class="mi">17</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">33750</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2023</span><span class="o">-</span><span class="mi">01</span><span class="o">-</span><span class="mi">04</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">01</span><span class="p">:</span><span class="mi">29</span><span class="p">.</span><span class="mi">499269</span><span class="o">+</span><span class="mi">00</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Streaming</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4000000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4000000</span>
<span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4000000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4000000</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Sync</span>
<span class="p">(</span><span class="mi">6</span><span class="w"> </span><span class="k">rows</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section1124195811166"><h4 class="sectiontitle">pgxc_replication_slots()</h4><p id="EN-US_TOPIC_0000001233510125__p98442392115">Description: queries the replication status on each DN in a cluster. For details about the returned results, see "System Catalogs &gt; System Views &gt; PG_REPLICATION_SLOTS" in the <em id="EN-US_TOPIC_0000001233510125__i20516183725516">Developer Guide</em>.</p>
<p id="EN-US_TOPIC_0000001233510125__p784413397118">Return type: record</p>
<p id="EN-US_TOPIC_0000001233510125__p94841184120">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen18622824154219"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span>
<span class="normal">11</span>
<span class="normal">12</span>
<span class="normal">13</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pgxc_replication_slots</span><span class="p">();</span>
<span class="w"> </span><span class="n">node_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">slot_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">plugin</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">slot_type</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">datoid</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">database</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">active</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">x_min</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">catalog_xmin</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">restart_lsn</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">dummy_standby</span>
<span class="c1">--------------+-----------------+--------+-----------+--------+----------+--------+-------+--------------+-------------------+---------------</span>
<span class="w"> </span><span class="n">dn_6001_6002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">dn_6001_3002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">physical</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">t</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">t</span>
<span class="w"> </span><span class="n">dn_6001_6002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">dn_6001_6002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">physical</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">t</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">49448720</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">f</span>
<span class="w"> </span><span class="n">dn_6001_6002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gs_roach_common</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">physical</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">f</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">635143447</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">FFFFFFFF</span><span class="o">/</span><span class="n">FFFFFFFF</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">f</span>
<span class="w"> </span><span class="n">dn_6003_6004</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">dn_6003_3003</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">physical</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">t</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">t</span>
<span class="w"> </span><span class="n">dn_6003_6004</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">dn_6003_6004</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">physical</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">t</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4942</span><span class="n">B760</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">f</span>
<span class="w"> </span><span class="n">dn_6003_6004</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gs_roach_common</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">physical</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">f</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">634883623</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">FFFFFFFF</span><span class="o">/</span><span class="n">FFFFFFFF</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">f</span>
<span class="w"> </span><span class="n">dn_6005_6006</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">dn_6005_3004</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">physical</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">t</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">t</span>
<span class="w"> </span><span class="n">dn_6005_6006</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">dn_6005_6006</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">physical</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">t</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="o">/</span><span class="mi">4944</span><span class="n">CE80</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">f</span>
<span class="w"> </span><span class="n">dn_6005_6006</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gs_roach_common</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">physical</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">f</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">635285455</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">FFFFFFFF</span><span class="o">/</span><span class="n">FFFFFFFF</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">f</span>
<span class="p">(</span><span class="mi">9</span><span class="w"> </span><span class="k">rows</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section8437161112179"><h4 class="sectiontitle">pgxc_settings()</h4><p id="EN-US_TOPIC_0000001233510125__p084483913111">Description: queries information about runtime parameters on each node in a cluster. For details about the returned results, see "System Catalogs &gt; System Views &gt; PG_SETTINGS" in the <em id="EN-US_TOPIC_0000001233510125__i10142195719555">Developer Guide</em>.</p>
<p id="EN-US_TOPIC_0000001233510125__p1384516391312">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section16955822111718"><h4 class="sectiontitle">pgxc_instance_time()</h4><p id="EN-US_TOPIC_0000001233510125__p184519391619">Description: queries the running time statistics of each node in a cluster and the time consumed in each execution phase. For details about the returned results, see "System Catalogs &gt; System Views &gt; PV_INSTANCE_TIME" in the <em id="EN-US_TOPIC_0000001233510125__i103280455587">Developer Guide</em>.</p>
<p id="EN-US_TOPIC_0000001233510125__p198458391216">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section5531933111719"><h4 class="sectiontitle">pg_stat_get_redo_stat()</h4><p id="EN-US_TOPIC_0000001233510125__p1384619391911">Description: queries Xlog redo statistics on the current node. For details about the returned results, see "System Catalogs &gt; System Views &gt; PV_REDO_STAT" in the <em id="EN-US_TOPIC_0000001233510125__i2112440144215">Developer Guide</em>.</p>
<p id="EN-US_TOPIC_0000001233510125__p684643915112">Return type: record</p>
<p id="EN-US_TOPIC_0000001233510125__p146608286445">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen18117164910445"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pg_stat_get_redo_stat</span><span class="p">();</span>
<span class="w"> </span><span class="n">phywrts</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">phyblkwrt</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">writetim</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">avgiotim</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">lstiotim</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">miniotim</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">maxiowtm</span>
<span class="c1">---------+-----------+----------+----------+----------+----------+----------</span>
<span class="w"> </span><span class="mi">400171</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">552783</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">11040710</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">27</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">8</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">7401</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section129045459175"><h4 class="sectiontitle">pgxc_redo_stat()</h4><p id="EN-US_TOPIC_0000001233510125__p118471239819">Description: queries the Xlog redo statistics of each node in a cluster. For details about the returned results, see "System Catalogs &gt; System Views &gt; PV_REDO_STAT" in the <em id="EN-US_TOPIC_0000001233510125__i2039914993211">Developer Guide</em>.</p>
<p id="EN-US_TOPIC_0000001233510125__p19847639317">Return type: record</p>
<p id="EN-US_TOPIC_0000001233510125__p18475142216451">Example:</p>
<pre class="screen" id="EN-US_TOPIC_0000001233510125__screen18979184195018">SELECT * FROM pgxc_redo_stat();
node_name | phywrts | phyblkwrt | writetim | avgiotim | lstiotim | miniotim | maxiowtm
--------------+---------+-----------+----------+----------+----------+----------+----------
dn_6001_6002 | 698244 | 836088 | 17608019 | 25 | 15 | 8 | 13115
dn_6003_6004 | 661128 | 799636 | 16714302 | 25 | 21 | 8 | 8195
dn_6005_6006 | 698146 | 836178 | 18117951 | 25 | 24 | 8 | 8326
cn_5003 | 400206 | 552823 | 11041701 | 27 | 18 | 8 | 7401
cn_5001 | 380931 | 514233 | 10174114 | 26 | 19 | 8 | 7726
cn_5002 | 551727 | 687991 | 11859292 | 21 | 31 | 8 | 10310
(6 rows)</pre>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section15995213183"><h4 class="sectiontitle">get_local_rel_iostat()</h4><p id="EN-US_TOPIC_0000001233510125__p1384853919112">Description: Obtains the disk I/O statistics of the current instance. For details about the returned results, see "System Catalogs &gt; System Views &gt; GS_REL_IOSTAT" in the <em id="EN-US_TOPIC_0000001233510125__i157036138114">Developer Guide</em>.</p>
<p id="EN-US_TOPIC_0000001233510125__p184883917110">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section17165123410183"><h4 class="sectiontitle">pgxc_rel_iostat()</h4><p id="EN-US_TOPIC_0000001233510125__p118481539115">Description: queries the disk I/O statistics on each node in a cluster. For details about the returned result, see "System Catalogs &gt; System Views &gt; GS_REL_IOSTAT" in the <em id="EN-US_TOPIC_0000001233510125__i146029451234">Developer Guide</em>.</p>
<p id="EN-US_TOPIC_0000001233510125__p4848133915115">Return type: record</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section131612474189"><h4 class="sectiontitle">get_node_stat_reset_time()</h4><p id="EN-US_TOPIC_0000001233510125__p158497391918">Description: Obtains the time when statistics of the current instance were reset.</p>
<p id="EN-US_TOPIC_0000001233510125__p108491039116">Return type: timestamptz</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section1032165918182"><a name="EN-US_TOPIC_0000001233510125__section1032165918182"></a><a name="section1032165918182"></a><h4 class="sectiontitle">pgxc_node_stat_reset_time()</h4><p id="EN-US_TOPIC_0000001233510125__p1284915398120">Description: queries the time when the statistics of each node in a cluster are reset. For details about the returned result, see "System Catalogs &gt; System Views &gt; GS_NODE_STAT_RESET_TIME" in the <em id="EN-US_TOPIC_0000001233510125__i1866584316413">Developer Guide</em>.</p>
<p id="EN-US_TOPIC_0000001233510125__p384915397117">Return type: record</p>
<div class="note" id="EN-US_TOPIC_0000001233510125__note384910392114"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><div class="p" id="EN-US_TOPIC_0000001233510125__p1185053918117">When an instance is running, its statistics keep rising. In the following cases, the statistical values in the memory will be reset to <strong id="EN-US_TOPIC_0000001233510125__b5536183916429">0</strong>:<ul id="EN-US_TOPIC_0000001233510125__ul3850639113"><li id="EN-US_TOPIC_0000001233510125__li16850113918119">The instance is restarted or a cluster switchover occurs.</li><li id="EN-US_TOPIC_0000001233510125__li12851839011">The database is deleted.</li><li id="EN-US_TOPIC_0000001233510125__li10851339517">A reset operation is performed. For example, the statistics counter in the database is reset using the <strong id="EN-US_TOPIC_0000001233510125__b1448552994715">pgstat_recv_resetcounter</strong> function or the Unique SQL statements are cleared using the <strong id="EN-US_TOPIC_0000001233510125__b1068215362536">reset_instr_unique_sql</strong> function.</li></ul>
</div>
<p id="EN-US_TOPIC_0000001233510125__p68519391116">If any of the preceding events occurs, <span id="EN-US_TOPIC_0000001233510125__text212614122172">GaussDB(DWS)</span> will record the time when the statistics are reset. You can query the time using the <strong id="EN-US_TOPIC_0000001233510125__b7383153535712">get_node_stat_reset_time</strong> function.</p>
</div></div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section191581712193"><h4 class="sectiontitle">pgxc_parallel_query(text, text)</h4><p id="EN-US_TOPIC_0000001233510125__p9852143920114">Description: Runs a specified SQL query statement on a data instance of a specified type and returns the query result to the current CN. This function is supported in 8.1.2 or later.</p>
<p id="EN-US_TOPIC_0000001233510125__p16852539219">The function has two parameters:</p>
<p id="EN-US_TOPIC_0000001233510125__p38522397115">The first parameter specifies the instances on which the SQL statement is executed. Currently, the valid input parameters are <strong id="EN-US_TOPIC_0000001233510125__b156601126175017">dn</strong>, <strong id="EN-US_TOPIC_0000001233510125__b7593113320501">datanode</strong>, <strong id="EN-US_TOPIC_0000001233510125__b15395163912502">cn</strong>, <strong id="EN-US_TOPIC_0000001233510125__b17668749135018">coordinator</strong>, and <strong id="EN-US_TOPIC_0000001233510125__b4276155735016">all</strong>. Other values will cause function execution errors. <strong id="EN-US_TOPIC_0000001233510125__b288803155112">dn</strong> and <strong id="EN-US_TOPIC_0000001233510125__b3888123195111">datanode</strong> indicate that the statement is executed on all DNs. <strong id="EN-US_TOPIC_0000001233510125__b1848325265110">cn</strong> and <strong id="EN-US_TOPIC_0000001233510125__b4483952135114">coordinator</strong> indicate that the statement is executed on all CNs. <strong id="EN-US_TOPIC_0000001233510125__b165875885217">all</strong> indicates that the statement is executed on all CNs and DNs.</p>
<p id="EN-US_TOPIC_0000001233510125__p1485213913114">The second parameter specifies the verification of the objects queried by the SQL statement that is to be sent to a remote node for execution. User tables, distributed tables, and user-defined functions with multiple result sets are not supported.</p>
<p id="EN-US_TOPIC_0000001233510125__p9853193916120">Return type: record</p>
<div class="note" id="EN-US_TOPIC_0000001233510125__note1485314391712"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001233510125__ul685383912111"><li id="EN-US_TOPIC_0000001233510125__li14853113915119">This function is only used by developers to efficiently collect the execution information or status of instances in a cluster. You are not advised to use it directly.</li><li id="EN-US_TOPIC_0000001233510125__li485414391614">This function contains multiple result sets, and the return data type is record. Therefore, you need to add the output column name and data type specified by the <strong id="EN-US_TOPIC_0000001233510125__b8210191815314">AS</strong> statement after the function call, as shown in the following:<pre class="screen" id="EN-US_TOPIC_0000001233510125__screen158542391314">SELECT * FROM pgxc_parallel_query('all', 'select node_name, db_name, thread_name, query_id, tid, lwtid, ptid, tlevel, smpid, wait_status, wait_event from pg_thread_wait_status') AS (node_name text, db_name text, thread_name text, query_id bigint, tid bigint, lwtid integer , ptid integer, tlevel integer , smpid integer, wait_status text, wait_event text);</pre>
</li><li id="EN-US_TOPIC_0000001233510125__li185563912114">The data type of the output result of the SQL statement specified by the second parameter of the function must be the same as the data type specified by the <strong id="EN-US_TOPIC_0000001233510125__b1479922116419">AS</strong> statement. Otherwise, an error may be reported during execution due to type mismatch.</li><li id="EN-US_TOPIC_0000001233510125__li11855183916111">The SQL statement specified by the second parameter of the function cannot trigger cross-node query. Otherwise, an error is reported.</li><li id="EN-US_TOPIC_0000001233510125__li4855103910116">The SQL statement specified by the second parameter of the function can only be a <strong id="EN-US_TOPIC_0000001233510125__b529194618215">SELECT</strong>, <strong id="EN-US_TOPIC_0000001233510125__b7243115013214">UPDATE</strong>, <strong id="EN-US_TOPIC_0000001233510125__b496945319216">DELETE</strong>, or <strong id="EN-US_TOPIC_0000001233510125__b19497058422">INSERT </strong>statement.<ul id="EN-US_TOPIC_0000001233510125__ul385610391212"><li id="EN-US_TOPIC_0000001233510125__li1885612391612">The <strong id="EN-US_TOPIC_0000001233510125__b106584351439">returning </strong>statement is not supported.</li><li id="EN-US_TOPIC_0000001233510125__li68561139713">The user who invokes the function must have the operation permission on the SQL objects.</li><li id="EN-US_TOPIC_0000001233510125__li1985616391110">For <strong id="EN-US_TOPIC_0000001233510125__b1959912146512">INSERT </strong>statements, <strong id="EN-US_TOPIC_0000001233510125__b7565162311516">INSERT OVERWRITE</strong>, <strong id="EN-US_TOPIC_0000001233510125__b66231261955">UPSERT</strong>, and <strong id="EN-US_TOPIC_0000001233510125__b9802530555">INSERT INTO</strong> are not supported.</li><li id="EN-US_TOPIC_0000001233510125__li585733913115">The <strong id="EN-US_TOPIC_0000001233510125__b935412441723">UPDATE</strong>, <strong id="EN-US_TOPIC_0000001233510125__b1012220484212">DELETE</strong>, and <strong id="EN-US_TOPIC_0000001233510125__b189931351426">INSERT </strong>statements can be executed only by the initial user in in-place upgrade mode or by the administrator in redistribution mode. The number of records modified by the statements on each instance must be the same. Otherwise, an error will be reported during statement execution. The function outputs a column of values of the bigint type. These values indicate the number of records operated by the statement on each instance.<pre class="screen" id="EN-US_TOPIC_0000001233510125__screen1385714392120">SELECT * FROM pgxc_parallel_query('cn', 'UPDATE pg_partition SET relpages = 0') AS (updated bigint);</pre>
</li></ul>
</li></ul>
</div></div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section55152582211"><h4 class="sectiontitle">generate_wdr_report(begin_snap_id bigint, end_snap_id bigint, report_type cstring, report_scope cstring, node_name cstring)</h4><p id="EN-US_TOPIC_0000001233510125__p98663396117">Description: Creates a load analysis report. The input parameters are described as follows:</p>
<ul id="EN-US_TOPIC_0000001233510125__ul2086619397116"><li id="EN-US_TOPIC_0000001233510125__li48665393111"><strong id="EN-US_TOPIC_0000001233510125__b1529233512361">begin_snap_id</strong> and <strong id="EN-US_TOPIC_0000001233510125__b423574493615">end_snap_id</strong>: IDs of the start and end snapshots, respectively. The IDs are of the bigint type. The value of <strong id="EN-US_TOPIC_0000001233510125__b3823312394">begin_snap_id</strong> must be less than that of <strong id="EN-US_TOPIC_0000001233510125__b1896311584015">end_snap_id</strong>, and the time for the start and end snapshots cannot overlap. You can check whether the snapshot time overlaps by querying <strong id="EN-US_TOPIC_0000001233510125__b16627143717529">select s1.end_ts &lt; s2.start_ts from (select * from dbms_om.snapshot where snapshot_id=$begin_snap_id) as s1, (select * from dbms_om.snapshot where snapshot_id=$end_snap_id) as s2</strong> in the <strong id="EN-US_TOPIC_0000001233510125__b1285134935218">dbms_om.snapshot</strong> table. If <strong id="EN-US_TOPIC_0000001233510125__b1054850145310">true</strong> is returned, the snapshot time does not overlap. Otherwise, the snapshot time overlaps.</li><li id="EN-US_TOPIC_0000001233510125__li2867163910113"><strong id="EN-US_TOPIC_0000001233510125__b79882425411">report_type</strong>: report type. The value is a cstring and can be <strong id="EN-US_TOPIC_0000001233510125__b204341589553">summary</strong>, <strong id="EN-US_TOPIC_0000001233510125__b1593821465518">detail</strong>, or <strong id="EN-US_TOPIC_0000001233510125__b10252132310559">all</strong>.</li><li id="EN-US_TOPIC_0000001233510125__li1686711398118"><strong id="EN-US_TOPIC_0000001233510125__b12156234195516">report_scope</strong>: report scope. The value is a cstring and can be <strong id="EN-US_TOPIC_0000001233510125__b15118956155519">cluster</strong> or <strong id="EN-US_TOPIC_0000001233510125__b199119216563">node</strong>.</li><li id="EN-US_TOPIC_0000001233510125__li48671439810"><strong id="EN-US_TOPIC_0000001233510125__b627011465610">node_name</strong>: node name. The value is a cstring. If <strong id="EN-US_TOPIC_0000001233510125__b1246172616579">report_scope</strong> is <strong id="EN-US_TOPIC_0000001233510125__b583873018579">node</strong>, the value of this parameter must be <strong id="EN-US_TOPIC_0000001233510125__b2016815459574">pg_catalog</strong>, which indicates the CN or DN name in the <strong id="EN-US_TOPIC_0000001233510125__b205847334516">node_name</strong> column of the <strong id="EN-US_TOPIC_0000001233510125__b45391844845">pgxc_node</strong> table.</li></ul>
<div class="p" id="EN-US_TOPIC_0000001233510125__p1386753915110">Return type: text<div class="note" id="EN-US_TOPIC_0000001233510125__note586816391711"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001233510125__ul138680391312"><li id="EN-US_TOPIC_0000001233510125__li138685390118">Only the database administrator <strong id="EN-US_TOPIC_0000001233510125__b13697111211616">SYSADMIN</strong> can execute this function.</li><li id="EN-US_TOPIC_0000001233510125__li1386815392016">This function can be executed only on CNs. If it is executed on DNs, the following message will be returned: "WDR report can only be created on coordinator."</li><li id="EN-US_TOPIC_0000001233510125__li98697391818">If the report is created successfully, message "Report %s has been generated" will be returned.</li><li id="EN-US_TOPIC_0000001233510125__li1869139811">The statistics cannot be reset between the time the start snapshot is taken and the time the end snapshot is taken. Otherwise, error message "Instance reset time is different" will be displayed. For details about the events that cause a statistics reset, see the <a href="#EN-US_TOPIC_0000001233510125__section1032165918182">pgxc_node_stat_reset_time</a> function.</li></ul>
</div></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001233510125__section25901057341"><h4 class="sectiontitle">wdr_xdb_query(db_name text, snapshot_id bigint, view_name text)</h4><p id="EN-US_TOPIC_0000001233510125__p1358819571142">Description: Queries a specified view in a specified database. The query results of some views vary depending on databases. For example, the <strong id="EN-US_TOPIC_0000001233510125__b363411177815">global_table_stat</strong> view is used to query the statistics of a table. The results of querying this view vary because tables in different databases are different. The <strong id="EN-US_TOPIC_0000001233510125__b14954195511102">wdr_xdb_query</strong> function can access the database specified by <strong id="EN-US_TOPIC_0000001233510125__b13690155141111">db_name</strong> in the current connection and query the view specified by <strong id="EN-US_TOPIC_0000001233510125__b797851610119">view_name</strong> in the database. The input parameters are described as follows:</p>
<ul id="EN-US_TOPIC_0000001233510125__ul45907571046"><li id="EN-US_TOPIC_0000001233510125__li45881057141"><strong id="EN-US_TOPIC_0000001233510125__b5771928191110">db_name</strong>: specifies the name of a database. The value is of the text type.</li><li id="EN-US_TOPIC_0000001233510125__li18588557341"><strong id="EN-US_TOPIC_0000001233510125__b1746054591114">snapshot_id</strong>: specifies the snapshot ID. The value is of the bigint type. For details, see "Performance View Snapshot".</li><li id="EN-US_TOPIC_0000001233510125__li759035716417"><strong id="EN-US_TOPIC_0000001233510125__b1527163221319">view_name</strong>: specifies the name of a view. The value is of the text type. The view name must be in the following whitelist:<ul id="EN-US_TOPIC_0000001233510125__ul6590105717416"><li id="EN-US_TOPIC_0000001233510125__li758915571414">global_table_stat</li><li id="EN-US_TOPIC_0000001233510125__li1958918579410">global_table_change_stat</li><li id="EN-US_TOPIC_0000001233510125__li3589125711418">global_column_table_io_stat</li><li id="EN-US_TOPIC_0000001233510125__li1259013571849">global_row_table_io_stat<p id="EN-US_TOPIC_0000001233510125__p758911571944"><a name="EN-US_TOPIC_0000001233510125__li1259013571849"></a><a name="li1259013571849"></a>The return value type is record. The first column is <strong id="EN-US_TOPIC_0000001233510125__b1111421911142">snapshot_id bigint</strong>, and the second column is <strong id="EN-US_TOPIC_0000001233510125__b159637239140">db_name text</strong>. The names, types, and sequences of other columns are the same as those of the views specified by <strong id="EN-US_TOPIC_0000001233510125__b960312398145">view_name</strong>.</p>
<p id="EN-US_TOPIC_0000001233510125__p720612220177">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233510125__screen11675730201719"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="n">snapshot_id</span><span class="p">,</span><span class="w"> </span><span class="n">db_name</span><span class="p">,</span><span class="w"> </span><span class="n">schemaname</span><span class="p">,</span><span class="w"> </span><span class="n">relname</span><span class="p">,</span><span class="w"> </span><span class="n">distribute_mode</span><span class="p">,</span><span class="w"> </span><span class="n">seq_scan</span><span class="w"> </span><span class="p">,</span><span class="n">seq_tuple_read</span><span class="w"> </span><span class="p">,</span><span class="n">index_scan</span><span class="w"> </span><span class="p">,</span><span class="n">index_tuple_read</span><span class="w"> </span><span class="p">,</span><span class="n">tuple_inserted</span>
<span class="p">,</span><span class="n">tuple_updated</span><span class="w"> </span><span class="p">,</span><span class="n">tuple_deleted</span><span class="w"> </span><span class="p">,</span><span class="n">tuple_hot_updated</span><span class="w"> </span><span class="p">,</span><span class="n">live_tuples</span><span class="w"> </span><span class="p">,</span><span class="n">dead_tuples</span><span class="w"> </span><span class="k">from</span><span class="w"> </span><span class="n">wdr_xdb_query</span><span class="p">(</span><span class="s1">'postgres'</span><span class="p">::</span><span class="nb">text</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="s1">'global_table_stat'</span><span class="p">::</span><span class="nb">text</span><span class="p">)</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="n">i</span><span class="p">(</span><span class="n">snapshot_id</span><span class="w"> </span><span class="nb">bigint</span><span class="p">,</span><span class="w"> </span><span class="n">db_name</span><span class="w"> </span><span class="nb">text</span><span class="p">,</span><span class="w"> </span><span class="n">schemaname</span><span class="w"> </span><span class="n">name</span><span class="p">,</span><span class="w"> </span><span class="n">relname</span><span class="w"> </span><span class="n">name</span><span class="p">,</span><span class="w"> </span><span class="n">distribute_mode</span><span class="w"> </span><span class="nb">char</span><span class="p">,</span><span class="w"> </span><span class="n">seq_scan</span><span class="w"> </span><span class="nb">bigint</span><span class="p">,</span><span class="w"> </span><span class="n">seq_tuple_read</span><span class="w"> </span><span class="nb">bigint</span><span class="p">,</span><span class="w"> </span><span class="n">index_scan</span><span class="w"> </span><span class="nb">bigint</span><span class="p">,</span><span class="w"> </span><span class="n">index_tuple_read</span><span class="w"> </span><span class="nb">bigint</span><span class="p">,</span><span class="w"> </span><span class="n">tuple_inserted</span><span class="w"> </span><span class="nb">bigint</span><span class="p">,</span><span class="w"> </span><span class="n">tuple_updated</span><span class="w"> </span><span class="nb">bigint</span><span class="p">,</span><span class="w"> </span><span class="n">tuplee_deleted</span><span class="w"> </span><span class="nb">bigint</span><span class="p">,</span><span class="w"> </span><span class="n">tuple_hot_updated</span><span class="w"> </span><span class="nb">bigint</span><span class="p">,</span><span class="w"> </span><span class="n">live_tuples</span><span class="w"> </span><span class="nb">bigint</span><span class="p">,</span><span class="w"> </span><span class="n">dead_tuples</span><span class="w"> </span><span class="nb">bigint</span><span class="p">);</span>
</pre></div></td></tr></table></div>
</div>
<div class="note" id="EN-US_TOPIC_0000001233510125__note8590105715410"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001233510125__ul3590195711416"><li id="EN-US_TOPIC_0000001233510125__li195896578414">This function is supported only in 8.1.2 or later.</li><li id="EN-US_TOPIC_0000001233510125__li1559012571148">Only the database administrator <strong id="EN-US_TOPIC_0000001233510125__b1931472043219">SYSADMIN</strong> can execute this function.</li><li id="EN-US_TOPIC_0000001233510125__li20590657943">This function can be used to query only the views in the whitelist. If you use this function to query other views, the error message <strong id="EN-US_TOPIC_0000001233510125__b19904285165">Input view name is invalid.</strong> will be displayed.</li></ul>
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</li></ul>
</li></ul>
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<div class="section" id="EN-US_TOPIC_0000001233510125__section7259173803017"><h4 class="sectiontitle">vac_fileclear_relation(oid)</h4><p id="EN-US_TOPIC_0000001233510125__p3871840110">Description: Forcibly clears VACUUM rewritten files in a specified column-store table to reclaim space.</p>
<p id="EN-US_TOPIC_0000001233510125__p1787124011119">Parameter: OID of a column-store table.</p>
<p id="EN-US_TOPIC_0000001233510125__p1588114019119">Return type: integer</p>
<div class="note" id="EN-US_TOPIC_0000001233510125__note98884012113"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001233510125__ul198816401819"><li id="EN-US_TOPIC_0000001233510125__li14881440112">Before using this function, set <strong id="EN-US_TOPIC_0000001233510125__b165332050105110">colvacuum_threshold_scale_factor</strong> and ensure that the files are cleared and space reclaimed only after the VACUUM process has rewritten the files of the specified column-store table. </li><li id="EN-US_TOPIC_0000001233510125__li389740414">This function exclusively locks a specified column-store table.</li></ul>
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<div class="section" id="EN-US_TOPIC_0000001233510125__section4767135763015"><h4 class="sectiontitle">vac_fileclear_all_relation()</h4><p id="EN-US_TOPIC_0000001233510125__p12891140918">Description: Forcibly clears VACUUM rewritten files in all specified column-store tables to reclaim space.</p>
<p id="EN-US_TOPIC_0000001233510125__p7891440317">Return type: record</p>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_06_0052.html">System Administration Functions</a></div>
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