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Fix ALTER TRIGGER ... RENAME, broken in WITH OIDS removal. 

I (Andres) broke this in 578b229718.

Author: Rushabh Lathia
Discussion: https://postgr.es/m/CAGPqQf04PywZX3sVQaF6H=oLiW9GJncRW+=e78vTy4MokEWcZw@mail.gmail.com
This commit is contained in:
Andres Freund 2019-01-21 09:12:31 -08:00
parent 93507e67c9
commit 8cc157b234
3 changed files with 25 additions and 5 deletions
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6
src/backend/commands/trigger.c
View File

@ -1721,14 +1721,14 @@ renametrig(RenameStmt *stmt)
NULL, 2, key);
if (HeapTupleIsValid(tuple = systable_getnext(tgscan)))
{
Form_pg_trigger trigform = (Form_pg_trigger) GETSTRUCT(tuple);
tgoid = trigform->oid;
Form_pg_trigger trigform;
/*
* Update pg_trigger tuple with new tgname.
*/
tuple = heap_copytuple(tuple); /* need a modifiable copy */
trigform = (Form_pg_trigger) GETSTRUCT(tuple);
tgoid = trigform->oid;
namestrcpy(&trigform->tgname,
stmt->newname);

16
src/test/regress/expected/triggers.out
View File

@ -434,7 +434,21 @@ SELECT pg_get_triggerdef(oid, true) FROM pg_trigger WHERE tgrelid = 'main_table'
CREATE TRIGGER modified_any BEFORE UPDATE OF a ON main_table FOR EACH ROW WHEN (old.* IS DISTINCT FROM new.*) EXECUTE PROCEDURE trigger_func('modified_any')
(1 row)
DROP TRIGGER modified_a ON main_table;
-- Test RENAME TRIGGER
ALTER TRIGGER modified_a ON main_table RENAME TO modified_modified_a;
SELECT count(*) FROM pg_trigger WHERE tgrelid = 'main_table'::regclass AND tgname = 'modified_a';
count
-------
0
(1 row)
SELECT count(*) FROM pg_trigger WHERE tgrelid = 'main_table'::regclass AND tgname = 'modified_modified_a';
count
-------
1
(1 row)
DROP TRIGGER modified_modified_a ON main_table;
DROP TRIGGER modified_any ON main_table;
DROP TRIGGER insert_a ON main_table;
DROP TRIGGER delete_a ON main_table;

8
src/test/regress/sql/triggers.sql
View File

@ -284,7 +284,13 @@ SELECT * FROM main_table ORDER BY a, b;
SELECT pg_get_triggerdef(oid, true) FROM pg_trigger WHERE tgrelid = 'main_table'::regclass AND tgname = 'modified_a';
SELECT pg_get_triggerdef(oid, false) FROM pg_trigger WHERE tgrelid = 'main_table'::regclass AND tgname = 'modified_a';
SELECT pg_get_triggerdef(oid, true) FROM pg_trigger WHERE tgrelid = 'main_table'::regclass AND tgname = 'modified_any';
DROP TRIGGER modified_a ON main_table;
-- Test RENAME TRIGGER
ALTER TRIGGER modified_a ON main_table RENAME TO modified_modified_a;
SELECT count(*) FROM pg_trigger WHERE tgrelid = 'main_table'::regclass AND tgname = 'modified_a';
SELECT count(*) FROM pg_trigger WHERE tgrelid = 'main_table'::regclass AND tgname = 'modified_modified_a';
DROP TRIGGER modified_modified_a ON main_table;
DROP TRIGGER modified_any ON main_table;
DROP TRIGGER insert_a ON main_table;
DROP TRIGGER delete_a ON main_table;