ALTER ROUTINE

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_name
ALTER ROUTINE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ]
 OWNER TO { new_owner | CURRENT_USER | SESSION_USER }
ALTER ROUTINE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ]
 SET SCHEMA new_schema
ALTER 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 AGGREGATE、ALTER 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 FUNCTION和ALTER PROCEDURE。允许例程名称引用聚集函数是一种PostgreSQL的扩展。

另见

注意没有CREATE ROUTINE命令。