1.查询所有触发器
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| SELECT ``tgname AS 触发器名称, ``relname AS 表名, ``proname AS 触发函数名, ``tgenabled AS 是否启用, ``pg_get_triggerdef(t.oid) AS 完整定义SQL FROM pg_trigger t JOIN pg_class c ON t.tgrelid ``= c.oid JOIN pg_proc p ON t.tgfoid ``= p.oid WHERE NOT t.tgisinternal ``-``- 过滤系统内部触发器 ORDER BY relname, tgname; trigger_imas_asset_info | imas_asset_info | cascade_audit_function | O | CREATE TRIGGER trigger_imas_asset_info AFTER INSERT OR DELETE OR UPDATE ON public.imas_asset_info FOR EACH ROW EXECUTE FUNCTION cascade_audit_function() |
2.查询单表触发器
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| SELECT ``tgname AS 触发器名称, ``pg_get_triggerdef(oid) AS 触发器完整定义 FROM pg_trigger WHERE tgrelid ``= 'imas_asset_info'``::regclass ``AND NOT tgisinternal; |
- 查询触发器源码
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| SELECT ``proname AS 函数名, ``pg_get_functiondef(oid) AS 函数源码 FROM pg_proc WHERE proname LIKE ``'%trigger_imas_asset_info%' -``- 过滤触发器函数 ORDER BY proname; |
- 查询触发器+触发时间+触发事件
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| SELECT ``c.relname AS 表名, ``t.tgname AS 触发器名, ``CASE WHEN t.tgtype & ``4 > ``0 THEN ``'BEFORE' ``WHEN t.tgtype & ``8 > ``0 THEN ``'AFTER' ``WHEN t.tgtype & ``16 > ``0 THEN ``'INSTEAD OF' END AS 触发时机, ``array_to_string( ``array( ``SELECT unnest( ``CASE WHEN t.tgtype & ``1 > ``0 THEN ARRAY[``'INSERT'``] ELSE ARRAY[] END || ``CASE WHEN t.tgtype & ``2 > ``0 THEN ARRAY[``'DELETE'``] ELSE ARRAY[] END || ``CASE WHEN t.tgtype & ``32 > ``0 THEN ARRAY[``'UPDATE'``] ELSE ARRAY[] END ``) ``), ``', ' ``) AS 触发事件, ``p.proname AS 触发函数, ``pg_get_triggerdef(t.oid) AS 完整定义 FROM pg_trigger t JOIN pg_class c ON t.tgrelid ``= c.oid JOIN pg_proc p ON t.tgfoid ``= p.oid WHERE NOT t.tgisinternal ORDER BY c.relname, t.tgname; |
- 触发器操作
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| 禁用触发器 ALTER TABLE 表名 DISABLE TRIGGER 触发器名; 启用触发器 ALTER TABLE 表名 ENABLE TRIGGER 触发器名; 删除触发器 DROP TRIGGER IF EXISTS 触发器名 ON 表名; |