云数据库 GAUSSDB-ALTER FUNCTION:语法格式
时间:2025-06-03 09:37:30
语法格式
- 修改自定义函数的附加参数。
ALTER FUNCTION function_name ( [ { [ argname ] [ argmode ] argtype} [, ...] ] ) action [ ... ] [ RESTRICT ];
其中附加参数action子句语法为:{CALLED ON NULL INPUT | RETURNS NULL ON NULL INPUT | STRICT} | {IMMUTABLE | STABLE | VOLATILE} | {SHIPPABLE | NOT SHIPPABLE} | {NOT FENCED | FENCED} | [ NOT ] LEAKPROOF | { [ EXTERNAL ] SECURITY INVOKER | [ EXTERNAL ] SECURITY DEFINER } | AUTHID { DEFINER | CURRENT_USER } | COST execution_cost | ROWS result_rows | SET configuration_parameter { { TO | = } { value | DEFAULT }| FROM CURRENT} | RESET {configuration_parameter | ALL}
- 修改自定义函数的名称。
ALTER FUNCTION function_name ( [ { [ argname ] [ argmode ] argtype} [, ...] ] ) RENAME TO new_name;
- 修改自定义函数的所有者。
ALTER FUNCTION function_name ( [ { [ argname ] [ argmode ] argtype} [, ...] ] ) OWNER TO new_owner;
- 修改自定义函数的模式。
ALTER FUNCTION function_name ( [ { [ argname ] [ argmode ] argtype} [, ...] ] ) SET SCHEMA new_schema;
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