更新时间：2023-10-23 GMT+08:00
触发器函数
- pg_get_triggerdef(oid)
参数：待查触发器的OID。
返回值类型：text
示例:
openGauss=# select pg_get_triggerdef(oid) from pg_trigger; pg_get_triggerdef -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CREATE TRIGGER tg1 BEFORE INSERT ON gtest26 FOR EACH STATEMENT EXECUTE PROCEDURE gtest_trigger_func() CREATE TRIGGER tg03 AFTER INSERT ON gtest26 FOR EACH ROW WHEN ((new.a IS NOT NULL)) EXECUTE PROCEDURE gtest_trigger_func() (2 rows) - pg_get_triggerdef(oid, boolean)
参数：待查触发器的OID及是否以pretty方式展示。
仅在创建trigger时指定WHEN条件的情况下，布尔类型参数才生效。
返回值类型：text
示例:
openGauss=# select pg_get_triggerdef(oid,true) from pg_trigger; pg_get_triggerdef -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CREATE TRIGGER tg1 BEFORE INSERT ON gtest26 FOR EACH STATEMENT EXECUTE PROCEDURE gtest_trigger_func() CREATE TRIGGER tg03 AFTER INSERT ON gtest26 FOR EACH ROW WHEN (new.a IS NOT NULL) EXECUTE PROCEDURE gtest_trigger_func() (2 rows) openGauss=# select pg_get_triggerdef(oid,false) from pg_trigger; pg_get_triggerdef -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CREATE TRIGGER tg1 BEFORE INSERT ON gtest26 FOR EACH STATEMENT EXECUTE PROCEDURE gtest_trigger_func() CREATE TRIGGER tg03 AFTER INSERT ON gtest26 FOR EACH ROW WHEN ((new.a IS NOT NULL)) EXECUTE PROCEDURE gtest_trigger_func() (2 rows)
父主题： 函数和操作符
