Details
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Task
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Status: Closed (View Workflow)
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Minor
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Resolution: Won't Fix
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None
Description
Currently SHOW TRIGGERS does not show the action order of triggers.
MariaDB [test]> show triggers like 't1' \G |
*************************** 1. row ***************************
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Trigger: tr1 |
Event: INSERT |
Table: t1 |
Statement: insert into tlog values (now(),'INSERT',new.c) |
Timing: AFTER |
Created: 2016-09-28 01:42:07.43
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sql_mode: NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
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Definer: root@localhost
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character_set_client: utf8
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collation_connection: utf8_general_ci
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Database Collation: latin1_swedish_ci |
*************************** 2. row ***************************
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Trigger: tr0 |
Event: INSERT |
Table: t1 |
Statement: insert into tlog values (now(),'INSERT',new.c) |
Timing: AFTER |
Created: 2016-09-28 01:42:23.27
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sql_mode: NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
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Definer: root@localhost
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character_set_client: utf8
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collation_connection: utf8_general_ci
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Database Collation: latin1_swedish_ci |
*************************** 3. row ***************************
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Trigger: tr2 |
Event: INSERT |
Table: t1 |
Statement: insert into tlog values (now(),'INSERT',new.c) |
Timing: AFTER |
Created: 2016-09-28 01:36:05.20
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sql_mode: NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
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Definer: root@localhost
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character_set_client: utf8
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collation_connection: utf8_general_ci
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Database Collation: latin1_swedish_ci |
3 rows in set (0.01 sec) |
It's not critical, since it can be found from INFORMATION_SCHEMA.TRIGGERS:
MariaDB [test]> select * from information_schema.triggers \G |
*************************** 1. row ***************************
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TRIGGER_CATALOG: def
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TRIGGER_SCHEMA: test
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TRIGGER_NAME: tr1
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EVENT_MANIPULATION: INSERT |
EVENT_OBJECT_CATALOG: def
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EVENT_OBJECT_SCHEMA: test
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EVENT_OBJECT_TABLE: t1
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ACTION_ORDER: 1
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ACTION_CONDITION: NULL |
ACTION_STATEMENT: insert into tlog values (now(),'INSERT',new.c) |
ACTION_ORIENTATION: ROW
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ACTION_TIMING: AFTER |
ACTION_REFERENCE_OLD_TABLE: NULL |
ACTION_REFERENCE_NEW_TABLE: NULL |
ACTION_REFERENCE_OLD_ROW: OLD
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ACTION_REFERENCE_NEW_ROW: NEW
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CREATED: 2016-09-28 01:42:07.43
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SQL_MODE: NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
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DEFINER: root@localhost
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CHARACTER_SET_CLIENT: utf8
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COLLATION_CONNECTION: utf8_general_ci
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DATABASE_COLLATION: latin1_swedish_ci
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*************************** 2. row ***************************
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TRIGGER_CATALOG: def
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TRIGGER_SCHEMA: test
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TRIGGER_NAME: tr0
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EVENT_MANIPULATION: INSERT |
EVENT_OBJECT_CATALOG: def
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EVENT_OBJECT_SCHEMA: test
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EVENT_OBJECT_TABLE: t1
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ACTION_ORDER: 2
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ACTION_CONDITION: NULL |
ACTION_STATEMENT: insert into tlog values (now(),'INSERT',new.c) |
ACTION_ORIENTATION: ROW
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ACTION_TIMING: AFTER |
ACTION_REFERENCE_OLD_TABLE: NULL |
ACTION_REFERENCE_NEW_TABLE: NULL |
ACTION_REFERENCE_OLD_ROW: OLD
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ACTION_REFERENCE_NEW_ROW: NEW
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CREATED: 2016-09-28 01:42:23.27
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SQL_MODE: NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
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DEFINER: root@localhost
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CHARACTER_SET_CLIENT: utf8
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COLLATION_CONNECTION: utf8_general_ci
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DATABASE_COLLATION: latin1_swedish_ci
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*************************** 3. row ***************************
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TRIGGER_CATALOG: def
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TRIGGER_SCHEMA: test
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TRIGGER_NAME: tr2
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EVENT_MANIPULATION: INSERT |
EVENT_OBJECT_CATALOG: def
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EVENT_OBJECT_SCHEMA: test
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EVENT_OBJECT_TABLE: t1
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ACTION_ORDER: 3
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ACTION_CONDITION: NULL |
ACTION_STATEMENT: insert into tlog values (now(),'INSERT',new.c) |
ACTION_ORIENTATION: ROW
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ACTION_TIMING: AFTER |
ACTION_REFERENCE_OLD_TABLE: NULL |
ACTION_REFERENCE_NEW_TABLE: NULL |
ACTION_REFERENCE_OLD_ROW: OLD
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ACTION_REFERENCE_NEW_ROW: NEW
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CREATED: 2016-09-28 01:36:05.20
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SQL_MODE: NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
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DEFINER: root@localhost
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CHARACTER_SET_CLIENT: utf8
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COLLATION_CONNECTION: utf8_general_ci
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DATABASE_COLLATION: latin1_swedish_ci
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3 rows in set (0.01 sec) |
Still, it would make sense to have it in SHOW TRIGGERS.
Update:
It turns out that the MySQL's MTR test case actually has a test which checks, specifically, that ACTION_ORDER is not displayed in SHOW output. I am not sure why, though.
# Test 5.
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# Check that action_order attribute isn't shown |
# in the output of SHOW TRIGGERS and SHOW CREATE TRIGGER |
Attachments
Issue Links
- relates to
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MDEV-6112 multiple triggers per table
- Closed