使用多个重命名 RENAME 表达式 postgresql 时出现语法错误

Question

我正在尝试编写一次重命名多个 table 列的查询。根据文档，语法是：

ALTER TABLE table_name
RENAME old_col_a AS new_col_a
, RENAME old_col_b AS new_col_b...;

但是，在这样做的过程中，我在第一个 RENAME 子句之后的逗号处收到语法错误：

ERROR:  syntax error at or near ","
LINE 3: , RENAME 
    ^
SQL state: 42601
Character: 1

查询适用于多个 DROP/ALTER/ADD 列和单个重命名。我终其一生都无法弄清楚为什么会发生此错误。

Answer 1

您需要使用多个 ALTER 语句：

ALTER TABLE table_name
RENAME COLUMN old_col_a TO new_col_a;

ALTER TABLE table_name
RENAME COLUMN old_col_b TO new_col_b;

ALTER TABLE

All the forms of ALTER TABLE that act on a single table, except RENAME, SET SCHEMA, ATTACH PARTITION, and DETACH PARTITION can be combined into a list of multiple alterations to be applied together. For example, it is possible to add several columns and/or alter the type of several columns in a single command. This is particularly useful with large tables, since only one pass over the table need be made.

使用多个重命名 RENAME 表达式 postgresql 时出现语法错误

Syntax error while using multiple rename RENAME expressions postgresql

sql

postgresql

alter-table