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Extend 'guc' regression test to check manipulations of datestyle as
author Tom Lane <tgl@sss.pgh.pa.us>
2006年8月13日 19:31:06 +0000 (19:31 +0000)
committer Tom Lane <tgl@sss.pgh.pa.us>
2006年8月13日 19:31:06 +0000 (19:31 +0000)
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.

src/test/regress/expected/guc.out patch | blob | blame | history
src/test/regress/sql/guc.sql patch | blob | blame | history

diff --git a/src/test/regress/expected/guc.out b/src/test/regress/expected/guc.out
index fb6d0d774df9f4b95a999ff69be08896cb58eda1..ca1b582630d58a536c8ce88ab9801bd94a5d5e32 100644 (file)
--- a/src/test/regress/expected/guc.out
+++ b/src/test/regress/expected/guc.out
@@ -1,11 +1,32 @@
--- SET vacuum_cost_delay to some value
+-- 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年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------
+ 2006年08月13日 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;
@@ -14,6 +35,19 @@ SHOW vacuum_cost_delay;
400ms
(1 row)
+SET LOCAL datestyle = 'SQL';
+SHOW datestyle;
+ DateStyle
+-----------
+ ISO, YMD
+(1 row)
+
+SELECT '2006年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------
+ 2006年08月13日 12:34:56-07
+(1 row)
+
-- SET LOCAL within a transaction that commits
BEGIN;
SET LOCAL vacuum_cost_delay TO 500;
@@ -23,6 +57,19 @@ SHOW vacuum_cost_delay;
500ms
(1 row)
+SET LOCAL datestyle = 'SQL';
+SHOW datestyle;
+ DateStyle
+-----------
+ SQL, YMD
+(1 row)
+
+SELECT '2006年08月13日 12:34:56'::timestamptz;
+ timestamptz
+-------------------------
+ 08/13/2006 12:34:56 PDT
+(1 row)
+
COMMIT;
SHOW vacuum_cost_delay;
vacuum_cost_delay
@@ -30,6 +77,18 @@ SHOW vacuum_cost_delay;
400ms
(1 row)
+SHOW datestyle;
+ DateStyle
+-----------
+ ISO, YMD
+(1 row)
+
+SELECT '2006年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------
+ 2006年08月13日 12:34:56-07
+(1 row)
+
-- SET should be reverted after ROLLBACK
BEGIN;
SET vacuum_cost_delay TO 600;
@@ -39,6 +98,19 @@ SHOW vacuum_cost_delay;
600ms
(1 row)
+SET datestyle = 'German';
+SHOW datestyle;
+ DateStyle
+-------------
+ German, DMY
+(1 row)
+
+SELECT '2006年08月13日 12:34:56'::timestamptz;
+ timestamptz
+-------------------------
+ 13.08.2006 12:34:56 PDT
+(1 row)
+
ROLLBACK;
SHOW vacuum_cost_delay;
vacuum_cost_delay
@@ -46,20 +118,83 @@ SHOW vacuum_cost_delay;
400ms
(1 row)
+SHOW datestyle;
+ DateStyle
+-----------
+ ISO, YMD
+(1 row)
+
+SELECT '2006年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------
+ 2006年08月13日 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年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------
+ 2006年08月13日 12:34:56-07
+(1 row)
+
SAVEPOINT first_sp;
SET vacuum_cost_delay TO 800;
-ROLLBACK TO first_sp;
SHOW vacuum_cost_delay;
vacuum_cost_delay
-------------------
- 700ms
+ 800ms
+(1 row)
+
+SET datestyle = 'German, DMY';
+SHOW datestyle;
+ DateStyle
+-------------
+ German, DMY
+(1 row)
+
+SELECT '2006年08月13日 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年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------
+ 2006年08月13日 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年08月13日 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;
@@ -68,6 +203,19 @@ SHOW vacuum_cost_delay;
1s
(1 row)
+SET datestyle = 'Postgres, MDY';
+SHOW datestyle;
+ DateStyle
+---------------
+ Postgres, MDY
+(1 row)
+
+SELECT '2006年08月13日 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
@@ -75,6 +223,18 @@ SHOW vacuum_cost_delay;
900ms
(1 row)
+SHOW datestyle;
+ DateStyle
+-----------
+ SQL, YMD
+(1 row)
+
+SELECT '2006年08月13日 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
@@ -82,7 +242,37 @@ SHOW vacuum_cost_delay;
700ms
(1 row)
+SHOW datestyle;
+ DateStyle
+-----------
+ ISO, MDY
+(1 row)
+
+SELECT '2006年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------
+ 2006年08月13日 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年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------
+ 2006年08月13日 12:34:56-07
+(1 row)
+
-- SET LOCAL with Savepoints
BEGIN;
SHOW vacuum_cost_delay;
@@ -91,6 +281,18 @@ SHOW vacuum_cost_delay;
400ms
(1 row)
+SHOW datestyle;
+ DateStyle
+-----------
+ ISO, YMD
+(1 row)
+
+SELECT '2006年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------
+ 2006年08月13日 12:34:56-07
+(1 row)
+
SAVEPOINT sp;
SET LOCAL vacuum_cost_delay TO 300;
SHOW vacuum_cost_delay;
@@ -99,6 +301,19 @@ SHOW vacuum_cost_delay;
300ms
(1 row)
+SET LOCAL datestyle = 'Postgres, MDY';
+SHOW datestyle;
+ DateStyle
+---------------
+ Postgres, MDY
+(1 row)
+
+SELECT '2006年08月13日 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
@@ -106,7 +321,37 @@ SHOW vacuum_cost_delay;
400ms
(1 row)
+SHOW datestyle;
+ DateStyle
+-----------
+ ISO, YMD
+(1 row)
+
+SELECT '2006年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------
+ 2006年08月13日 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年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------
+ 2006年08月13日 12:34:56-07
+(1 row)
+
-- SET followed by SET LOCAL
BEGIN;
SET vacuum_cost_delay TO 400;
@@ -117,6 +362,20 @@ SHOW vacuum_cost_delay;
500ms
(1 row)
+SET datestyle = 'ISO, DMY';
+SET LOCAL datestyle = 'Postgres, MDY';
+SHOW datestyle;
+ DateStyle
+---------------
+ Postgres, MDY
+(1 row)
+
+SELECT '2006年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------------
+ Sun Aug 13 12:34:56 2006 PDT
+(1 row)
+
COMMIT;
SHOW vacuum_cost_delay;
vacuum_cost_delay
@@ -124,16 +383,22 @@ SHOW vacuum_cost_delay;
400ms
(1 row)
+SHOW datestyle;
+ DateStyle
+-----------
+ ISO, DMY
+(1 row)
+
+SELECT '2006年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------
+ 2006年08月13日 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.
--
-SHOW datestyle;
- DateStyle
----------------
- Postgres, MDY
-(1 row)
-
SET datestyle = iso, ymd;
SHOW datestyle;
DateStyle
@@ -141,6 +406,12 @@ SHOW datestyle;
ISO, YMD
(1 row)
+SELECT '2006年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------
+ 2006年08月13日 12:34:56-07
+(1 row)
+
RESET datestyle;
SHOW datestyle;
DateStyle
@@ -148,3 +419,9 @@ SHOW datestyle;
Postgres, MDY
(1 row)
+SELECT '2006年08月13日 12:34:56'::timestamptz;
+ timestamptz
+------------------------------
+ Sun Aug 13 12:34:56 2006 PDT
+(1 row)
+
diff --git a/src/test/regress/sql/guc.sql b/src/test/regress/sql/guc.sql
index 420f3f4386b914d76dda0b28716327226d2499d9..6d17a182412676d49f4f9f4bb84fb41db9b3a037 100644 (file)
--- a/src/test/regress/sql/guc.sql
+++ b/src/test/regress/sql/guc.sql
@@ -1,67 +1,125 @@
--- SET vacuum_cost_delay to some value
+-- 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;
+
+-- SET to some nondefault value
SET vacuum_cost_delay TO 400;
+SET datestyle = 'ISO, YMD';
SHOW vacuum_cost_delay;
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
-- SET LOCAL has no effect outside of a transaction
SET LOCAL vacuum_cost_delay TO 500;
SHOW vacuum_cost_delay;
+SET LOCAL datestyle = 'SQL';
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
-- SET LOCAL within a transaction that commits
BEGIN;
SET LOCAL vacuum_cost_delay TO 500;
SHOW vacuum_cost_delay;
+SET LOCAL datestyle = 'SQL';
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
COMMIT;
SHOW vacuum_cost_delay;
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
-- SET should be reverted after ROLLBACK
BEGIN;
SET vacuum_cost_delay TO 600;
SHOW vacuum_cost_delay;
+SET datestyle = 'German';
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
ROLLBACK;
SHOW vacuum_cost_delay;
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
-- Some tests with subtransactions
BEGIN;
SET vacuum_cost_delay TO 700;
+SET datestyle = 'MDY';
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
SAVEPOINT first_sp;
SET vacuum_cost_delay TO 800;
-ROLLBACK TO first_sp;
SHOW vacuum_cost_delay;
+SET datestyle = 'German, DMY';
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
+ROLLBACK TO first_sp;
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
SAVEPOINT second_sp;
SET vacuum_cost_delay TO 900;
+SET datestyle = 'SQL, YMD';
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
SAVEPOINT third_sp;
SET vacuum_cost_delay TO 1000;
SHOW vacuum_cost_delay;
+SET datestyle = 'Postgres, MDY';
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
ROLLBACK TO third_sp;
SHOW vacuum_cost_delay;
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
ROLLBACK TO second_sp;
SHOW vacuum_cost_delay;
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
ROLLBACK;
+SHOW vacuum_cost_delay;
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
-- SET LOCAL with Savepoints
BEGIN;
SHOW vacuum_cost_delay;
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
SAVEPOINT sp;
SET LOCAL vacuum_cost_delay TO 300;
SHOW vacuum_cost_delay;
+SET LOCAL datestyle = 'Postgres, MDY';
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
ROLLBACK TO sp;
SHOW vacuum_cost_delay;
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
ROLLBACK;
+SHOW vacuum_cost_delay;
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
-- SET followed by SET LOCAL
BEGIN;
SET vacuum_cost_delay TO 400;
SET LOCAL vacuum_cost_delay TO 500;
SHOW vacuum_cost_delay;
+SET datestyle = 'ISO, DMY';
+SET LOCAL datestyle = 'Postgres, MDY';
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
COMMIT;
SHOW vacuum_cost_delay;
+SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
--
-- Test RESET. We use datestyle because the reset value is forced by
-- pg_regress, so it doesn't depend on the installation's configuration.
--
-SHOW datestyle;
SET datestyle = iso, ymd;
SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
RESET datestyle;
SHOW datestyle;
+SELECT '2006年08月13日 12:34:56'::timestamptz;
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