mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-09-13 19:49:39 +02:00
a1dad99c63
well as vacuum_cost_delay. Since datestyle is a string variable, this exercises memory allocation issues that might not appear when modifying an integer GUC variable. Also, we can observe the side effects of changing datestyle to check that assign hooks are called at the right times.
428 lines
7.0 KiB
Plaintext
428 lines
7.0 KiB
Plaintext
-- pg_regress should ensure that this default value applies; however
|
|
-- we can't rely on any specific default value of vacuum_cost_delay
|
|
SHOW datestyle;
|
|
DateStyle
|
|
---------------
|
|
Postgres, MDY
|
|
(1 row)
|
|
|
|
-- SET to some nondefault value
|
|
SET vacuum_cost_delay TO 400;
|
|
SET datestyle = 'ISO, YMD';
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
400ms
|
|
(1 row)
|
|
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
ISO, YMD
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------
|
|
2006-08-13 12:34:56-07
|
|
(1 row)
|
|
|
|
-- SET LOCAL has no effect outside of a transaction
|
|
SET LOCAL vacuum_cost_delay TO 500;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
400ms
|
|
(1 row)
|
|
|
|
SET LOCAL datestyle = 'SQL';
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
ISO, YMD
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------
|
|
2006-08-13 12:34:56-07
|
|
(1 row)
|
|
|
|
-- SET LOCAL within a transaction that commits
|
|
BEGIN;
|
|
SET LOCAL vacuum_cost_delay TO 500;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
500ms
|
|
(1 row)
|
|
|
|
SET LOCAL datestyle = 'SQL';
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
SQL, YMD
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
-------------------------
|
|
08/13/2006 12:34:56 PDT
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
400ms
|
|
(1 row)
|
|
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
ISO, YMD
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------
|
|
2006-08-13 12:34:56-07
|
|
(1 row)
|
|
|
|
-- SET should be reverted after ROLLBACK
|
|
BEGIN;
|
|
SET vacuum_cost_delay TO 600;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
600ms
|
|
(1 row)
|
|
|
|
SET datestyle = 'German';
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-------------
|
|
German, DMY
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
-------------------------
|
|
13.08.2006 12:34:56 PDT
|
|
(1 row)
|
|
|
|
ROLLBACK;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
400ms
|
|
(1 row)
|
|
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
ISO, YMD
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------
|
|
2006-08-13 12:34:56-07
|
|
(1 row)
|
|
|
|
-- Some tests with subtransactions
|
|
BEGIN;
|
|
SET vacuum_cost_delay TO 700;
|
|
SET datestyle = 'MDY';
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
ISO, MDY
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------
|
|
2006-08-13 12:34:56-07
|
|
(1 row)
|
|
|
|
SAVEPOINT first_sp;
|
|
SET vacuum_cost_delay TO 800;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
800ms
|
|
(1 row)
|
|
|
|
SET datestyle = 'German, DMY';
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-------------
|
|
German, DMY
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
-------------------------
|
|
13.08.2006 12:34:56 PDT
|
|
(1 row)
|
|
|
|
ROLLBACK TO first_sp;
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
ISO, MDY
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------
|
|
2006-08-13 12:34:56-07
|
|
(1 row)
|
|
|
|
SAVEPOINT second_sp;
|
|
SET vacuum_cost_delay TO 900;
|
|
SET datestyle = 'SQL, YMD';
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
SQL, YMD
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
-------------------------
|
|
08/13/2006 12:34:56 PDT
|
|
(1 row)
|
|
|
|
SAVEPOINT third_sp;
|
|
SET vacuum_cost_delay TO 1000;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
1s
|
|
(1 row)
|
|
|
|
SET datestyle = 'Postgres, MDY';
|
|
SHOW datestyle;
|
|
DateStyle
|
|
---------------
|
|
Postgres, MDY
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------------
|
|
Sun Aug 13 12:34:56 2006 PDT
|
|
(1 row)
|
|
|
|
ROLLBACK TO third_sp;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
900ms
|
|
(1 row)
|
|
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
SQL, YMD
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
-------------------------
|
|
08/13/2006 12:34:56 PDT
|
|
(1 row)
|
|
|
|
ROLLBACK TO second_sp;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
700ms
|
|
(1 row)
|
|
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
ISO, MDY
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------
|
|
2006-08-13 12:34:56-07
|
|
(1 row)
|
|
|
|
ROLLBACK;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
400ms
|
|
(1 row)
|
|
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
ISO, YMD
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------
|
|
2006-08-13 12:34:56-07
|
|
(1 row)
|
|
|
|
-- SET LOCAL with Savepoints
|
|
BEGIN;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
400ms
|
|
(1 row)
|
|
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
ISO, YMD
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------
|
|
2006-08-13 12:34:56-07
|
|
(1 row)
|
|
|
|
SAVEPOINT sp;
|
|
SET LOCAL vacuum_cost_delay TO 300;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
300ms
|
|
(1 row)
|
|
|
|
SET LOCAL datestyle = 'Postgres, MDY';
|
|
SHOW datestyle;
|
|
DateStyle
|
|
---------------
|
|
Postgres, MDY
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------------
|
|
Sun Aug 13 12:34:56 2006 PDT
|
|
(1 row)
|
|
|
|
ROLLBACK TO sp;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
400ms
|
|
(1 row)
|
|
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
ISO, YMD
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------
|
|
2006-08-13 12:34:56-07
|
|
(1 row)
|
|
|
|
ROLLBACK;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
400ms
|
|
(1 row)
|
|
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
ISO, YMD
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------
|
|
2006-08-13 12:34:56-07
|
|
(1 row)
|
|
|
|
-- SET followed by SET LOCAL
|
|
BEGIN;
|
|
SET vacuum_cost_delay TO 400;
|
|
SET LOCAL vacuum_cost_delay TO 500;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
500ms
|
|
(1 row)
|
|
|
|
SET datestyle = 'ISO, DMY';
|
|
SET LOCAL datestyle = 'Postgres, MDY';
|
|
SHOW datestyle;
|
|
DateStyle
|
|
---------------
|
|
Postgres, MDY
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------------
|
|
Sun Aug 13 12:34:56 2006 PDT
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
SHOW vacuum_cost_delay;
|
|
vacuum_cost_delay
|
|
-------------------
|
|
400ms
|
|
(1 row)
|
|
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
ISO, DMY
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------
|
|
2006-08-13 12:34:56-07
|
|
(1 row)
|
|
|
|
--
|
|
-- Test RESET. We use datestyle because the reset value is forced by
|
|
-- pg_regress, so it doesn't depend on the installation's configuration.
|
|
--
|
|
SET datestyle = iso, ymd;
|
|
SHOW datestyle;
|
|
DateStyle
|
|
-----------
|
|
ISO, YMD
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------
|
|
2006-08-13 12:34:56-07
|
|
(1 row)
|
|
|
|
RESET datestyle;
|
|
SHOW datestyle;
|
|
DateStyle
|
|
---------------
|
|
Postgres, MDY
|
|
(1 row)
|
|
|
|
SELECT '2006-08-13 12:34:56'::timestamptz;
|
|
timestamptz
|
|
------------------------------
|
|
Sun Aug 13 12:34:56 2006 PDT
|
|
(1 row)
|
|
|