PostgreSQL DROP INDEX Summary: in this tutorial, you will learn how to use the PostgreSQLDROP INDEXstatement to remove an existing index. Introduction to PostgreSQL DROP INDEX statement Sometimes, you may want to remove an existing index from the database system. To do it, you use theDROP ...
方式一:truncate 不带 update index ,如果表有全局索引,则truncate partition会失全局索引失效。 -- 创建一个全局非分区索引 SQL> create index idx_pandy_id on p_andy(id); Index created. --查看索引名字 SQL> col column_name for a40 SELECT index_name, column_name, descend FROM user_ind_columns W...
Refuse to drop the index if any objects depend on it. This is the default. EXAMPLES This command will remove the index title_idx: 复制 DROP INDEX title_idx; 1. COMPATIBILITY DROP INDEXis a PostgreSQL language extension. There are no provisions for indexes in the SQL standard. SEE ALSO CR...
#7 0x0000000000750944 in exec_simple_query (query_string=0x17e90b0 "drop table t1;") at postgres.c:1045 #8 0x0000000000754967 in PostgresMain (argc=1, argv=0x1784148, dbname=0x1784130 "wzy", username=0x1784110 "xiaochu.yh") at postgres.c:4004 #9 0x00000000006e80ba in BackendRun (port...
DROP INDEX index_name ON tbl_name [algorithm_option | lock_option] ... algorithm_option: ALGORITHM [=] {DEFAULT|INPLACE|COPY} lock_option: LOCK [=] {DEFAULT|NONE|SHARED|EXCLUSIVE} Drop Index in PostgreSQL 9.3.13 DROP INDEX -- remove an index ...
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To drop an index created withCREATE UNIQUE INDEX, you do not need to useCASCADE. RESTRICT(Default)Do not drop the indexes if any objects (such asconstraints) depend on them. CONCURRENTLYOptional, no-op syntax for PostgreSQL compatibility. All indexes are dropped concurrently in CockroachDB. ...
In PostgreSQL created indexes will belong to the same schema, as the table, to which the index belongs to. When generating SQL for migration an index name does not currently contain the schema prefix. This is incorrect, since there is no guarantee that the selected schema of the connection,...
Hinweis zum Ende des Supports: Bestandskunden können Amazon QLDB bis zum Ende des Supports am 31.07.2025 nutzen. Weitere Informationen finden Sie unterMigrieren eines Amazon QLDB-Ledgers zu AmazonAurora PostgreSQL. Verwenden Sie in Amazon QLDB denDROP INDEXBefehl, um einen Index für eine Tab...
Introduction to PostgreSQL DROP TABLESPACE statement The DROP TABLESPACE statement delete a tablespace from a database: Here’s the syntax of the DROP TABLE statement: DROP TABLESPACE [IF EXISTS] tablespace_name; In this syntax: First, specify the name of the tablespace that you want to remove ...