forked from laiweijian4/doc-exports
Lu, Huayi
346ac31da9
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Reviewed-by: Jiang, Beibei <beibei.jiang@t-systems.com> Co-authored-by: Lu, Huayi <luhuayi@huawei.com> Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
116 lines
6.8 KiB
HTML
116 lines
6.8 KiB
HTML
<a name="EN-US_TOPIC_0000001188681024"></a><a name="EN-US_TOPIC_0000001188681024"></a>
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<h1 class="topictitle1">Spatial Indexes</h1>
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<div id="body8662426"><p id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_p330274862511"><span id="EN-US_TOPIC_0000001188681024__text10892754124514">GaussDB(DWS)</span> does not support spatial indexes. DSC will perform adaptation based on GaussDB features during migration.</p>
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<ol id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_ol12553123692615"><li id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_li15553183615265">Inline spatial index<p id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_p135691921172717"><a name="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_li15553183615265"></a><a name="en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_li15553183615265"></a><strong id="EN-US_TOPIC_0000001188681024__en-us_topic_0237712560_b1781615910498">Input</strong></p>
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<pre class="screen" id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_screen182799185276">CREATE TABLE `public`.`test_create_table04` (
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`ID` INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY,
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`A` POINT NOT NULL,
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`B` POLYGON NOT NULL,
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`C` GEOMETRYCOLLECTION NOT NULL,
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`D` LINESTRING NOT NULL,
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`E` MULTILINESTRING NOT NULL,
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`F` MULTIPOINT NOT NULL,
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`G` MULTIPOLYGON NOT NULL,
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SPATIAL INDEX A_INDEX(A),
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SPATIAL INDEX B_INDEX(B),
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SPATIAL INDEX C_INDEX(C),
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SPATIAL KEY D_INDEX(D),
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SPATIAL KEY E_INDEX(E),
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SPATIAL KEY F_INDEX(F),
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SPATIAL INDEX G_INDEX(G)
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);</pre>
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<p id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_p77858251279"><strong id="EN-US_TOPIC_0000001188681024__en-us_topic_0237712560_b1181612593494">Output</strong></p>
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<pre class="screen" id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_screen71919285272">CREATE TABLE "public"."test_create_table04"
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(
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"id" SERIAL NOT NULL PRIMARY KEY,
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"a" POINT NOT NULL,
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"b" POLYGON NOT NULL,
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"c" CIRCLE NOT NULL,
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"d" POLYGON NOT NULL,
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"e" BOX NOT NULL,
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"f" BOX NOT NULL,
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"g" POLYGON NOT NULL
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)
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WITH ( ORIENTATION = ROW, COMPRESSION = NO )
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NOCOMPRESS
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DISTRIBUTE BY HASH ("id");
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CREATE INDEX "a_index" ON "public"."test_create_table04" USING GIST ("a");
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CREATE INDEX "b_index" ON "public"."test_create_table04" USING GIST ("b");
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CREATE INDEX "c_index" ON "public"."test_create_table04" USING GIST ("c");
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CREATE INDEX "d_index" ON "public"."test_create_table04" USING GIST ("d");
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CREATE INDEX "e_index" ON "public"."test_create_table04" USING GIST ("e");
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CREATE INDEX "f_index" ON "public"."test_create_table04" USING GIST ("f");
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CREATE INDEX "g_index" ON "public"."test_create_table04" USING GIST ("g");</pre>
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</li><li id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_li19672194516269">Spatial index created by <strong id="EN-US_TOPIC_0000001188681024__en-us_topic_0237712560_b16817145911495">ALTER TABLE</strong><p id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_p1287443289"><strong id="EN-US_TOPIC_0000001188681024__en-us_topic_0237712560_b14817185919494">Input</strong></p>
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<pre class="screen" id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_screen9287164132817">CREATE TABLE `public`.`test_create_table04` (
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`ID` INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY,
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`A` POINT NOT NULL,
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`B` POLYGON NOT NULL,
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`C` GEOMETRYCOLLECTION NOT NULL,
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`D` LINESTRING NOT NULL,
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`E` MULTILINESTRING NOT NULL,
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`F` MULTIPOINT NOT NULL,
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`G` MULTIPOLYGON NOT NULL
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);
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ALTER TABLE `test_create_table04` ADD SPATIAL INDEX A_INDEX(A);
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ALTER TABLE `test_create_table04` ADD SPATIAL INDEX E_INDEX(E) USING BTREE;</pre>
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<p id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_p142870442811"><strong id="EN-US_TOPIC_0000001188681024__en-us_topic_0237712560_b1817259124918">Output</strong></p>
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<pre class="screen" id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_screen19288648288">CREATE TABLE "public"."test_create_table04"
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(
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"id" SERIAL NOT NULL PRIMARY KEY,
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"a" POINT NOT NULL,
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"b" POLYGON NOT NULL,
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"c" CIRCLE NOT NULL,
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"d" POLYGON NOT NULL,
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"e" BOX NOT NULL,
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"f" BOX NOT NULL,
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"g" POLYGON NOT NULL
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)
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WITH ( ORIENTATION = ROW, COMPRESSION = NO )
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NOCOMPRESS
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DISTRIBUTE BY HASH ("id");
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CREATE INDEX "a_index" ON "public"."test_create_table04" USING GIST ("a");
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CREATE INDEX "e_index" ON "public"."test_create_table04" USING GIST ("e");</pre>
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</li><li id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_li1937655815268">Spatial index created by <strong id="EN-US_TOPIC_0000001188681024__en-us_topic_0237712560_b98172593492">CREATE INDEX</strong><p id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_p15863552819"><strong id="EN-US_TOPIC_0000001188681024__en-us_topic_0237712560_b18817115904911">Input</strong></p>
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<pre class="screen" id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_screen758620572815">CREATE TABLE `public`.`test_create_table04` (
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`ID` INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY,
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`A` POINT NOT NULL,
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`B` POLYGON NOT NULL,
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`C` GEOMETRYCOLLECTION NOT NULL,
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`D` LINESTRING NOT NULL,
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`E` MULTILINESTRING NOT NULL,
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`F` MULTIPOINT NOT NULL,
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`G` MULTIPOLYGON NOT NULL
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);
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CREATE SPATIAL INDEX A_INDEX ON `test_create_table04`(A);</pre>
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<p id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_p35869514281"><strong id="EN-US_TOPIC_0000001188681024__en-us_topic_0237712560_b681795913493">Output</strong></p>
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<pre class="screen" id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_screen8586145162813">CREATE TABLE "public"."test_create_table04"
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(
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"id" SERIAL NOT NULL PRIMARY KEY,
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"a" POINT NOT NULL,
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"b" POLYGON NOT NULL,
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"c" CIRCLE NOT NULL,
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"d" POLYGON NOT NULL,
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"e" BOX NOT NULL,
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"f" BOX NOT NULL,
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"g" POLYGON NOT NULL
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)
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WITH ( ORIENTATION = ROW, COMPRESSION = NO )
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NOCOMPRESS
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DISTRIBUTE BY HASH ("id");
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CREATE INDEX "a_index" ON "public"."test_create_table04" USING GIST ("a");</pre>
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</li></ol>
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<p id="EN-US_TOPIC_0000001188681024__en-us_topic_0238518446_en-us_topic_0237362240_en-us_topic_0214164755_p8060118"></p>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_sct_0013.html">MySQL Syntax Migration</a></div>
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</div>
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</div>
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