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Support TRUNCATE triggers on foreign tables.

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Now some foreign data wrappers support TRUNCATE command.
So it's useful to support TRUNCATE triggers on foreign tables for
audit logging or for preventing undesired truncation.

Author: Yugo Nagata
Reviewed-by: Fujii Masao, Ian Lawrence Barwick
Discussion: https://postgr.es/m/20220630193848.5b02e0d6076b86617a915682@sraoss.co.jp
This commit is contained in:
Fujii Masao
2022-07-12 09:18:02 +09:00
parent 14168d3c62
commit 3b00a944a9
4 changed files with 11 additions and 14 deletions
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9
contrib/postgres_fdw/expected/postgres_fdw.out
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@ -6732,9 +6732,9 @@ BEGIN
TG_ARGV[0], TG_OP, TG_WHEN, TG_LEVEL;
RETURN NULL;
END;$$;
CREATE TRIGGER trig_stmt_before BEFORE DELETE OR INSERT OR UPDATE ON rem1
CREATE TRIGGER trig_stmt_before BEFORE DELETE OR INSERT OR UPDATE OR TRUNCATE ON rem1
FOR EACH STATEMENT EXECUTE PROCEDURE trigger_func();
CREATE TRIGGER trig_stmt_after AFTER DELETE OR INSERT OR UPDATE ON rem1
CREATE TRIGGER trig_stmt_after AFTER DELETE OR INSERT OR UPDATE OR TRUNCATE ON rem1
FOR EACH STATEMENT EXECUTE PROCEDURE trigger_func();
CREATE OR REPLACE FUNCTION trigger_data() RETURNS trigger
LANGUAGE plpgsql AS $$
@ -6821,6 +6821,9 @@ NOTICE: OLD: (1,update),NEW: (1,updateupdate)
NOTICE: trig_row_after(23, skidoo) AFTER ROW UPDATE ON rem1
NOTICE: OLD: (1,update),NEW: (1,updateupdate)
NOTICE: trigger_func(<NULL>) called: action = UPDATE, when = AFTER, level = STATEMENT
truncate rem1;
NOTICE: trigger_func(<NULL>) called: action = TRUNCATE, when = BEFORE, level = STATEMENT
NOTICE: trigger_func(<NULL>) called: action = TRUNCATE, when = AFTER, level = STATEMENT
-- cleanup
DROP TRIGGER trig_row_before ON rem1;
DROP TRIGGER trig_row_after ON rem1;
@ -7087,7 +7090,7 @@ NOTICE: trig_row_after(23, skidoo) AFTER ROW INSERT ON rem1
NOTICE: NEW: (13,"test triggered !")
ctid
--------
(0,32)
(0,25)
(1 row)
-- cleanup