Add more information_schema columns
- table_constraints.enforced - triggers.action_order - triggers.action_reference_old_table - triggers.action_reference_new_table Reviewed-by: Michael Paquier <michael.paquier@gmail.com>
This commit is contained in:
Peter Eisentraut
parent
b98a7cd58f
commit
32ff269117
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@ -5317,6 +5317,13 @@ ORDER BY c.ordinal_position;
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<entry><type>yes_or_no</type></entry>
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<entry><literal>YES</literal> if the constraint is deferrable and initially deferred, <literal>NO</literal> if not</entry>
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</row>
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<row>
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<entry><literal>enforced</literal></entry>
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<entry><type>yes_or_no</type></entry>
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<entry>Applies to a feature not available in
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<productname>PostgreSQL</productname> (currently always
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<literal>YES</literal>)</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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@ -5761,7 +5768,14 @@ ORDER BY c.ordinal_position;
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<row>
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<entry><literal>action_order</literal></entry>
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<entry><type>cardinal_number</type></entry>
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<entry>Not yet implemented</entry>
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<entry>
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Firing order among triggers on the same table having the same
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<literal>event_manipulation</literal>,
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<literal>action_timing</literal>, and
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<literal>action_orientation</literal>. In
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<productname>PostgreSQL</productname>, triggers are fired in name
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order, so this column reflects that.
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</entry>
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</row>
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<row>
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@ -5806,13 +5820,13 @@ ORDER BY c.ordinal_position;
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<row>
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<entry><literal>action_reference_old_table</literal></entry>
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<entry><type>sql_identifier</type></entry>
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<entry>Applies to a feature not available in <productname>PostgreSQL</productname></entry>
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<entry>Name of the <quote>old</quote> transition table, or null if none</entry>
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</row>
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<row>
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<entry><literal>action_reference_new_table</literal></entry>
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<entry><type>sql_identifier</type></entry>
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<entry>Applies to a feature not available in <productname>PostgreSQL</productname></entry>
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<entry>Name of the <quote>new</quote> transition table, or null if none</entry>
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</row>
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<row>
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@ -1783,7 +1783,8 @@ CREATE VIEW table_constraints AS
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CAST(CASE WHEN c.condeferrable THEN 'YES' ELSE 'NO' END AS yes_or_no)
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AS is_deferrable,
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CAST(CASE WHEN c.condeferred THEN 'YES' ELSE 'NO' END AS yes_or_no)
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AS initially_deferred
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AS initially_deferred,
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CAST('YES' AS yes_or_no) AS enforced
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FROM pg_namespace nc,
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pg_namespace nr,
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@ -1812,7 +1813,8 @@ CREATE VIEW table_constraints AS
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CAST(r.relname AS sql_identifier) AS table_name,
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CAST('CHECK' AS character_data) AS constraint_type,
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CAST('NO' AS yes_or_no) AS is_deferrable,
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CAST('NO' AS yes_or_no) AS initially_deferred
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CAST('NO' AS yes_or_no) AS initially_deferred,
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CAST('YES' AS yes_or_no) AS enforced
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FROM pg_namespace nr,
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pg_class r,
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@ -2084,8 +2086,12 @@ CREATE VIEW triggers AS
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CAST(current_database() AS sql_identifier) AS event_object_catalog,
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CAST(n.nspname AS sql_identifier) AS event_object_schema,
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CAST(c.relname AS sql_identifier) AS event_object_table,
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CAST(null AS cardinal_number) AS action_order,
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-- XXX strange hacks follow
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CAST(
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-- To determine action order, partition by schema, table,
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-- event_manipulation (INSERT/DELETE/UPDATE), ROW/STATEMENT (1),
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-- BEFORE/AFTER (66), then order by trigger name
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rank() OVER (PARTITION BY n.oid, c.oid, em.num, t.tgtype & 1, t.tgtype & 66 ORDER BY t.tgname)
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AS cardinal_number) AS action_order,
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CAST(
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CASE WHEN pg_has_role(c.relowner, 'USAGE')
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THEN (regexp_match(pg_get_triggerdef(t.oid), E'.{35,} WHEN \\((.+)\\) EXECUTE PROCEDURE'))[1]
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@ -2103,8 +2109,8 @@ CREATE VIEW triggers AS
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-- hard-wired refs to TRIGGER_TYPE_BEFORE, TRIGGER_TYPE_INSTEAD
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CASE t.tgtype & 66 WHEN 2 THEN 'BEFORE' WHEN 64 THEN 'INSTEAD OF' ELSE 'AFTER' END
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AS character_data) AS action_timing,
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CAST(null AS sql_identifier) AS action_reference_old_table,
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CAST(null AS sql_identifier) AS action_reference_new_table,
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CAST(tgoldtable AS sql_identifier) AS action_reference_old_table,
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CAST(tgnewtable AS sql_identifier) AS action_reference_new_table,
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CAST(null AS sql_identifier) AS action_reference_old_row,
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CAST(null AS sql_identifier) AS action_reference_new_row,
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CAST(null AS time_stamp) AS created
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@ -96,6 +96,24 @@ CONTEXT: SQL statement "delete from fkeys2 where fkey21 = $1 and fkey22 = $2 "
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update pkeys set pkey1 = 7, pkey2 = '70' where pkey1 = 10 and pkey2 = '1';
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NOTICE: check_pkeys_fkey_cascade: 1 tuple(s) of fkeys are deleted
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NOTICE: check_pkeys_fkey_cascade: 1 tuple(s) of fkeys2 are deleted
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SELECT trigger_name, event_manipulation, event_object_schema, event_object_table,
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action_order, action_condition, action_orientation, action_timing,
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action_reference_old_table, action_reference_new_table
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FROM information_schema.triggers ORDER BY 1, 2;
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trigger_name | event_manipulation | event_object_schema | event_object_table | action_order | action_condition | action_orientation | action_timing | action_reference_old_table | action_reference_new_table
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----------------------------+--------------------+---------------------+--------------------+--------------+------------------+--------------------+---------------+----------------------------+----------------------------
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check_fkeys2_fkey_restrict | DELETE | public | fkeys2 | 1 | | ROW | BEFORE | |
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check_fkeys2_fkey_restrict | UPDATE | public | fkeys2 | 1 | | ROW | BEFORE | |
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check_fkeys2_pkey_exist | INSERT | public | fkeys2 | 1 | | ROW | BEFORE | |
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check_fkeys2_pkey_exist | UPDATE | public | fkeys2 | 2 | | ROW | BEFORE | |
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check_fkeys_pkey2_exist | INSERT | public | fkeys | 1 | | ROW | BEFORE | |
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check_fkeys_pkey2_exist | UPDATE | public | fkeys | 1 | | ROW | BEFORE | |
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check_fkeys_pkey_exist | INSERT | public | fkeys | 2 | | ROW | BEFORE | |
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check_fkeys_pkey_exist | UPDATE | public | fkeys | 2 | | ROW | BEFORE | |
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check_pkeys_fkey_cascade | DELETE | public | pkeys | 1 | | ROW | BEFORE | |
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check_pkeys_fkey_cascade | UPDATE | public | pkeys | 1 | | ROW | BEFORE | |
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(10 rows)
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DROP TABLE pkeys;
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DROP TABLE fkeys;
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DROP TABLE fkeys2;
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@ -347,6 +365,24 @@ CREATE TRIGGER insert_when BEFORE INSERT ON main_table
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FOR EACH STATEMENT WHEN (true) EXECUTE PROCEDURE trigger_func('insert_when');
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CREATE TRIGGER delete_when AFTER DELETE ON main_table
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FOR EACH STATEMENT WHEN (true) EXECUTE PROCEDURE trigger_func('delete_when');
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SELECT trigger_name, event_manipulation, event_object_schema, event_object_table,
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action_order, action_condition, action_orientation, action_timing,
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action_reference_old_table, action_reference_new_table
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FROM information_schema.triggers ORDER BY 1, 2;
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trigger_name | event_manipulation | event_object_schema | event_object_table | action_order | action_condition | action_orientation | action_timing | action_reference_old_table | action_reference_new_table
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----------------------+--------------------+---------------------+--------------------+--------------+--------------------------------+--------------------+---------------+----------------------------+----------------------------
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after_ins_stmt_trig | INSERT | public | main_table | 1 | | STATEMENT | AFTER | |
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after_upd_row_trig | UPDATE | public | main_table | 1 | | ROW | AFTER | |
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after_upd_stmt_trig | UPDATE | public | main_table | 1 | | STATEMENT | AFTER | |
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before_ins_stmt_trig | INSERT | public | main_table | 1 | | STATEMENT | BEFORE | |
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delete_a | DELETE | public | main_table | 1 | (old.a = 123) | ROW | AFTER | |
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delete_when | DELETE | public | main_table | 1 | true | STATEMENT | AFTER | |
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insert_a | INSERT | public | main_table | 1 | (new.a = 123) | ROW | AFTER | |
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insert_when | INSERT | public | main_table | 2 | true | STATEMENT | BEFORE | |
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modified_a | UPDATE | public | main_table | 1 | (old.a <> new.a) | ROW | BEFORE | |
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modified_any | UPDATE | public | main_table | 2 | (old.* IS DISTINCT FROM new.*) | ROW | BEFORE | |
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(10 rows)
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INSERT INTO main_table (a) VALUES (123), (456);
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NOTICE: trigger_func(before_ins_stmt) called: action = INSERT, when = BEFORE, level = STATEMENT
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NOTICE: trigger_func(insert_when) called: action = INSERT, when = BEFORE, level = STATEMENT
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@ -1991,6 +2027,33 @@ create trigger child3_update_trig
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create trigger child3_delete_trig
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after delete on child3 referencing old table as old_table
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for each statement execute procedure dump_delete();
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SELECT trigger_name, event_manipulation, event_object_schema, event_object_table,
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action_order, action_condition, action_orientation, action_timing,
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action_reference_old_table, action_reference_new_table
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FROM information_schema.triggers ORDER BY 1, 2;
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trigger_name | event_manipulation | event_object_schema | event_object_table | action_order | action_condition | action_orientation | action_timing | action_reference_old_table | action_reference_new_table
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------------------------+--------------------+---------------------+--------------------+--------------+------------------+--------------------+---------------+----------------------------+----------------------------
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after_ins_stmt_trig | INSERT | public | main_table | 1 | | STATEMENT | AFTER | |
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after_upd_a_b_row_trig | UPDATE | public | main_table | 1 | | ROW | AFTER | |
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after_upd_b_row_trig | UPDATE | public | main_table | 2 | | ROW | AFTER | |
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after_upd_b_stmt_trig | UPDATE | public | main_table | 1 | | STATEMENT | AFTER | |
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after_upd_stmt_trig | UPDATE | public | main_table | 2 | | STATEMENT | AFTER | |
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before_ins_stmt_trig | INSERT | public | main_table | 1 | | STATEMENT | BEFORE | |
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before_upd_a_stmt_trig | UPDATE | public | main_table | 1 | | STATEMENT | BEFORE | |
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child1_delete_trig | DELETE | public | child1 | 1 | | STATEMENT | AFTER | old_table |
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child1_insert_trig | INSERT | public | child1 | 1 | | STATEMENT | AFTER | | new_table
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child1_update_trig | UPDATE | public | child1 | 1 | | STATEMENT | AFTER | old_table | new_table
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child2_delete_trig | DELETE | public | child2 | 1 | | STATEMENT | AFTER | old_table |
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child2_insert_trig | INSERT | public | child2 | 1 | | STATEMENT | AFTER | | new_table
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child2_update_trig | UPDATE | public | child2 | 1 | | STATEMENT | AFTER | old_table | new_table
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child3_delete_trig | DELETE | public | child3 | 1 | | STATEMENT | AFTER | old_table |
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child3_insert_trig | INSERT | public | child3 | 1 | | STATEMENT | AFTER | | new_table
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child3_update_trig | UPDATE | public | child3 | 1 | | STATEMENT | AFTER | old_table | new_table
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parent_delete_trig | DELETE | public | parent | 1 | | STATEMENT | AFTER | old_table |
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parent_insert_trig | INSERT | public | parent | 1 | | STATEMENT | AFTER | | new_table
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parent_update_trig | UPDATE | public | parent | 1 | | STATEMENT | AFTER | old_table | new_table
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(19 rows)
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-- insert directly into children sees respective child-format tuples
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insert into child1 values ('AAA', 42);
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NOTICE: trigger = child1_insert_trig, new table = (AAA,42)
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@ -92,6 +92,11 @@ delete from pkeys where pkey1 = 40 and pkey2 = '4';
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update pkeys set pkey1 = 7, pkey2 = '70' where pkey1 = 50 and pkey2 = '5';
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update pkeys set pkey1 = 7, pkey2 = '70' where pkey1 = 10 and pkey2 = '1';
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SELECT trigger_name, event_manipulation, event_object_schema, event_object_table,
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action_order, action_condition, action_orientation, action_timing,
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action_reference_old_table, action_reference_new_table
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FROM information_schema.triggers ORDER BY 1, 2;
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DROP TABLE pkeys;
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DROP TABLE fkeys;
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DROP TABLE fkeys2;
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@ -279,6 +284,10 @@ CREATE TRIGGER insert_when BEFORE INSERT ON main_table
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FOR EACH STATEMENT WHEN (true) EXECUTE PROCEDURE trigger_func('insert_when');
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CREATE TRIGGER delete_when AFTER DELETE ON main_table
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FOR EACH STATEMENT WHEN (true) EXECUTE PROCEDURE trigger_func('delete_when');
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SELECT trigger_name, event_manipulation, event_object_schema, event_object_table,
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action_order, action_condition, action_orientation, action_timing,
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action_reference_old_table, action_reference_new_table
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FROM information_schema.triggers ORDER BY 1, 2;
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INSERT INTO main_table (a) VALUES (123), (456);
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COPY main_table FROM stdin;
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123 999
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@ -1472,6 +1481,11 @@ create trigger child3_delete_trig
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after delete on child3 referencing old table as old_table
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for each statement execute procedure dump_delete();
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SELECT trigger_name, event_manipulation, event_object_schema, event_object_table,
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action_order, action_condition, action_orientation, action_timing,
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action_reference_old_table, action_reference_new_table
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FROM information_schema.triggers ORDER BY 1, 2;
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-- insert directly into children sees respective child-format tuples
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insert into child1 values ('AAA', 42);
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insert into child2 values ('BBB', 42);
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