阅读(3698) (0)

PostgreSQL ALTER ROUTINE

2021-08-23 14:26:43 更新

ALTER ROUTINE — 更改一个例程的定义

大纲

ALTER ROUTINE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ]    action [ ... ] [ RESTRICT ]ALTER ROUTINE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ]    RENAME TO new_nameALTER ROUTINE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ]    OWNER TO { new_owner | CURRENT_USER | SESSION_USER }ALTER ROUTINE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ]    SET SCHEMA new_schemaALTER ROUTINE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ]    DEPENDS ON EXTENSION extension_name其中action是下列之一:

    IMMUTABLE | STABLE | VOLATILE | [ NOT ] LEAKPROOF
    [ EXTERNAL ] SECURITY INVOKER | [ EXTERNAL ] SECURITY DEFINER
    PARALLEL { UNSAFE | RESTRICTED | SAFE }
    COST execution_cost
    ROWS result_rows
    SET configuration_parameter { TO | = } { value | DEFAULT }
    SET configuration_parameter FROM CURRENT
    RESET configuration_parameter
    RESET ALL

描述

ALTER ROUTINE更改一个例程的定义,它可以是聚集函数、普通函数或者过程。参数的描述、更多的例子以及进一步的细节请参考ALTER AGGREGATEALTER FUNCTION以及ALTER PROCEDURE

示例

将类型integer的例程foo重命名为foobar

ALTER ROUTINE foo(integer) RENAME TO foobar;

不管foo是聚集、函数还是过程,这个命令都能使用。

兼容性

这个语句与SQL标准中的ALTER ROUTINE语句部分兼容。更多细节请参考ALTER FUNCTIONALTER PROCEDURE 。允许例程名称引用聚集函数是一种PostgreSQL的扩展。

另见

ALTER AGGREGATE , ALTER FUNCTION, ALTER PROCEDURE, DROP ROUTINE

注意没有CREATE ROUTINE命令。