forked from docs/doc-exports
Lu, Huayi
27019c2991
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> 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>
116 lines
7.4 KiB
HTML
116 lines
7.4 KiB
HTML
<a name="EN-US_TOPIC_0000001772536540"></a><a name="EN-US_TOPIC_0000001772536540"></a>
|
|
|
|
<h1 class="topictitle1">Spatial Indexes</h1>
|
|
<div id="body8662426"><p id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_p330274862511">GaussDB(DWS) does not support spatial indexes. DSC will perform adaptation based on GaussDB(DWS) features during migration.</p>
|
|
<ol id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_ol12553123692615"><li id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_li15553183615265">Inline spatial index<p id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_p135691921172717"><a name="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_li15553183615265"></a><a name="en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_li15553183615265"></a><strong id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_b123631548192715">Input</strong></p>
|
|
<pre class="screen" id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_screen182799185276">CREATE TABLE `public`.`test_create_table04` (
|
|
`ID` INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY,
|
|
`A` POINT NOT NULL,
|
|
`B` POLYGON NOT NULL,
|
|
`C` GEOMETRYCOLLECTION NOT NULL,
|
|
`D` LINESTRING NOT NULL,
|
|
`E` MULTILINESTRING NOT NULL,
|
|
`F` MULTIPOINT NOT NULL,
|
|
`G` MULTIPOLYGON NOT NULL,
|
|
SPATIAL INDEX A_INDEX(A),
|
|
SPATIAL INDEX B_INDEX(B),
|
|
SPATIAL INDEX C_INDEX(C),
|
|
SPATIAL KEY D_INDEX(D),
|
|
SPATIAL KEY E_INDEX(E),
|
|
SPATIAL KEY F_INDEX(F),
|
|
SPATIAL INDEX G_INDEX(G)
|
|
);</pre>
|
|
<p id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_p77858251279"><strong id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_b197144504277">Output</strong></p>
|
|
<pre class="screen" id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_screen71919285272">CREATE TABLE "public"."test_create_table04"
|
|
(
|
|
"id" SERIAL NOT NULL PRIMARY KEY,
|
|
"a" POINT NOT NULL,
|
|
"b" POLYGON NOT NULL,
|
|
"c" GEOMETRYCOLLECTION NOT NULL,
|
|
"d" POLYGON NOT NULL,
|
|
"e" BOX NOT NULL,
|
|
"f" BOX NOT NULL,
|
|
"g" POLYGON NOT NULL
|
|
)
|
|
WITH ( ORIENTATION = ROW, COMPRESSION = NO )
|
|
NOCOMPRESS
|
|
DISTRIBUTE BY HASH ("id");
|
|
CREATE INDEX "a_index" ON "public"."test_create_table04" USING GIST ("a");
|
|
CREATE INDEX "b_index" ON "public"."test_create_table04" USING GIST ("b");
|
|
CREATE INDEX "c_index" ON "public"."test_create_table04" USING GIST ("c");
|
|
CREATE INDEX "d_index" ON "public"."test_create_table04" USING GIST ("d");
|
|
CREATE INDEX "e_index" ON "public"."test_create_table04" USING GIST ("e");
|
|
CREATE INDEX "f_index" ON "public"."test_create_table04" USING GIST ("f");
|
|
CREATE INDEX "g_index" ON "public"."test_create_table04" USING GIST ("g");</pre>
|
|
</li><li id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_li19672194516269">Spatial index created by <strong id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_b9210100131844">ALTER TABLE</strong><p id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_p1287443289"><strong id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_b728710413284">Input</strong></p>
|
|
<pre class="screen" id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_screen9287164132817">CREATE TABLE `public`.`test_create_table04` (
|
|
`ID` INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY,
|
|
`A` POINT NOT NULL,
|
|
`B` POLYGON NOT NULL,
|
|
`C` GEOMETRYCOLLECTION NOT NULL,
|
|
`D` LINESTRING NOT NULL,
|
|
`E` MULTILINESTRING NOT NULL,
|
|
`F` MULTIPOINT NOT NULL,
|
|
`G` MULTIPOLYGON NOT NULL
|
|
);
|
|
|
|
ALTER TABLE `test_create_table04` ADD SPATIAL INDEX A_INDEX(A);
|
|
ALTER TABLE `test_create_table04` ADD SPATIAL INDEX E_INDEX(E) USING BTREE;</pre>
|
|
<p id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_p142870442811"><strong id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_b10288134162811">Output</strong></p>
|
|
<pre class="screen" id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_screen19288648288">CREATE TABLE "public"."test_create_table04"
|
|
(
|
|
"id" SERIAL NOT NULL PRIMARY KEY,
|
|
"a" POINT NOT NULL,
|
|
"b" POLYGON NOT NULL,
|
|
"c" GEOMETRYCOLLECTION NOT NULL,
|
|
"d" POLYGON NOT NULL,
|
|
"e" BOX NOT NULL,
|
|
"f" BOX NOT NULL,
|
|
"g" POLYGON NOT NULL
|
|
)
|
|
WITH ( ORIENTATION = ROW, COMPRESSION = NO )
|
|
NOCOMPRESS
|
|
DISTRIBUTE BY HASH ("id");
|
|
|
|
CREATE INDEX "a_index" ON "public"."test_create_table04" USING GIST ("a");
|
|
CREATE INDEX "e_index" ON "public"."test_create_table04" USING GIST ("e");</pre>
|
|
</li><li id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_li1937655815268">Spatial index created by <strong id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_b52140728131844">CREATE INDEX</strong><p id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_p15863552819"><strong id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_b11586205182818">Input</strong></p>
|
|
<pre class="screen" id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_screen758620572815">CREATE TABLE `public`.`test_create_table04` (
|
|
`ID` INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY,
|
|
`A` POINT NOT NULL,
|
|
`B` POLYGON NOT NULL,
|
|
`C` GEOMETRYCOLLECTION NOT NULL,
|
|
`D` LINESTRING NOT NULL,
|
|
`E` MULTILINESTRING NOT NULL,
|
|
`F` MULTIPOINT NOT NULL,
|
|
`G` MULTIPOLYGON NOT NULL
|
|
);
|
|
|
|
CREATE SPATIAL INDEX A_INDEX ON `test_create_table04`(A);</pre>
|
|
<p id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_p35869514281"><strong id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_b458615162817">Output</strong></p>
|
|
<pre class="screen" id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_screen8586145162813">CREATE TABLE "public"."test_create_table04"
|
|
(
|
|
"id" SERIAL NOT NULL PRIMARY KEY,
|
|
"a" POINT NOT NULL,
|
|
"b" POLYGON NOT NULL,
|
|
"c" GEOMETRYCOLLECTION NOT NULL,
|
|
"d" POLYGON NOT NULL,
|
|
"e" BOX NOT NULL,
|
|
"f" BOX NOT NULL,
|
|
"g" POLYGON NOT NULL
|
|
)
|
|
WITH ( ORIENTATION = ROW, COMPRESSION = NO )
|
|
NOCOMPRESS
|
|
DISTRIBUTE BY HASH ("id");
|
|
|
|
CREATE INDEX "a_index" ON "public"."test_create_table04" USING GIST ("a");</pre>
|
|
</li></ol>
|
|
<p id="EN-US_TOPIC_0000001772536540__en-us_topic_0000001706224273_en-us_topic_0000001436072257_en-us_topic_0214164755_p8060118"></p>
|
|
</div>
|
|
<div>
|
|
<div class="familylinks">
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_16_0166.html">Indexes</a></div>
|
|
</div>
|
|
</div>
|
|
|