更新时间:2024-12-10 GMT+08:00
CLUSTERED KEY
在ADB中,CLUSTERED KEY:聚集索引,定义表中的排序列,聚集索引中键值的逻辑顺序决定了表中相应行的物理顺序。GaussDB(DWS)不支持该属性修改表定义信息,DSC迁移时会将该关键字删除。
输入示例
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DROP TABLE IF EXISTS unsupport_parse_test; CREATE TABLE `unsupport_parse_test` ( `username` int, clustered key clustered_key(shopid ASC, datetype ASC) ); DROP TABLE IF EXISTS unsupport_parse_test; |
输出示例
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DROP TABLE IF EXISTS "public"."unsupport_parse_test"; CREATE TABLE "public"."unsupport_parse_test" ( "username" INTEGER ) WITH (ORIENTATION = ROW, COMPRESSION = NO) NOCOMPRESS DISTRIBUTE BY HASH ("username"); DROP TABLE IF EXISTS "public"."unsupport_parse_test"; |
父主题: 表(可选参数、操作)