触发器函数

    • 描述：获取触发器的定义信息。

      参数：待查触发器的OID。

      返回值类型：text

    • pg_get_triggerdef(oid, boolean)

      描述：获取触发器的定义信息。

      参数：待查触发器的OID及是否以pretty方式展示。

    返回值类型：text

    示例:

    2. openGauss=# select pg_get_triggerdef(oid,true) from pg_trigger;
    3.                                                                                      pg_get_triggerdef
    4.  CREATE TRIGGER tg1 BEFORE INSERT ON gtest26 FOR EACH STATEMENT EXECUTE PROCEDURE gtest_trigger_func()
    6. (2 rows)
    8. openGauss=# select pg_get_triggerdef(oid,false) from pg_trigger;
    10.  CREATE TRIGGER tg1 BEFORE INSERT ON gtest26 FOR EACH STATEMENT EXECUTE PROCEDURE gtest_trigger_func()
    11.  CREATE TRIGGER tg03 AFTER INSERT ON gtest26 FOR EACH ROW WHEN ((new.a IS NOT NULL)) EXECUTE PROCEDURE gtest_trigger_func()
    12. (2 rows)
    13. ```