File postgresql-testsuite-timezone-fix.patch of Package postgresql14

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File postgresql-testsuite-timezone-fix.patch of Package postgresql14 (Revision 1e1ba9bc6a460e1607968febe6c098a4)

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From b27622c90869aab63cfe22159a459c57768b0fa4 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Sat, 14 Sep 2024 17:55:03 -0400
Subject: [PATCH] Run regression tests with timezone America/Los_Angeles.

Historically we've used timezone "PST8PDT", but the recent release
2024b of tzdb changes the definition of that zone in a way that
breaks many test cases concerned with dates before 1970.  Although
we've not yet adopted 2024b into our own tree, this is already
problematic for people using --with-system-tzdata if their platform
has already adopted 2024b.  To work with both older and newer
versions of tzdb, switch to using "America/Los_Angeles", accepting
the ensuing changes in regression test results.

Back-patch to all supported branches.

Per report and patch from Wolfgang Walther.

Discussion: https://postgr.es/m/0a997455-5aba-4cf2-a354-d26d8bcbfae6@technowledgy.de
---
 doc/src/sgml/ref/set.sgml                 |   4 +-
 doc/src/sgml/regress.sgml                 |   6 +-
 src/test/regress/expected/date.out        |  10 +-
 src/test/regress/expected/horology.out    |  57 +++++----
 src/test/regress/expected/timestamptz.out | 137 ++++++++++++----------
 src/test/regress/pg_regress.c             |   2 +-
 src/test/regress/sql/horology.sql         |   4 +-
 src/test/regress/sql/timestamptz.sql      |   5 +-
 8 files changed, 120 insertions(+), 105 deletions(-)

diff --git a/src/test/regress/expected/date.out b/src/test/regress/expected/date.out
index c8b0566ff40ce..958b5f15e416a 100644
--- a/src/test/regress/expected/date.out
+++ b/src/test/regress/expected/date.out
@@ -1264,7 +1264,7 @@ SELECT DATE_TRUNC('MILLENNIUM', TIMESTAMP '1970-03-20 04:30:00.00000'); -- 1001
 SELECT DATE_TRUNC('MILLENNIUM', DATE '1970-03-20'); -- 1001-01-01
           date_trunc          
 ------------------------------
- Thu Jan 01 00:00:00 1001 PST
+ Thu Jan 01 00:00:00 1001 LMT
 (1 row)
 
 SELECT DATE_TRUNC('CENTURY', TIMESTAMP '1970-03-20 04:30:00.00000'); -- 1901
@@ -1288,13 +1288,13 @@ SELECT DATE_TRUNC('CENTURY', DATE '2004-08-10'); -- 2001-01-01
 SELECT DATE_TRUNC('CENTURY', DATE '0002-02-04'); -- 0001-01-01
           date_trunc          
 ------------------------------
- Mon Jan 01 00:00:00 0001 PST
+ Mon Jan 01 00:00:00 0001 LMT
 (1 row)
 
 SELECT DATE_TRUNC('CENTURY', DATE '0055-08-10 BC'); -- 0100-01-01 BC
            date_trunc            
 ---------------------------------
- Tue Jan 01 00:00:00 0100 PST BC
+ Tue Jan 01 00:00:00 0100 LMT BC
 (1 row)
 
 SELECT DATE_TRUNC('DECADE', DATE '1993-12-25'); -- 1990-01-01
@@ -1306,13 +1306,13 @@ SELECT DATE_TRUNC('DECADE', DATE '1993-12-25'); -- 1990-01-01
 SELECT DATE_TRUNC('DECADE', DATE '0004-12-25'); -- 0001-01-01 BC
            date_trunc            
 ---------------------------------
- Sat Jan 01 00:00:00 0001 PST BC
+ Sat Jan 01 00:00:00 0001 LMT BC
 (1 row)
 
 SELECT DATE_TRUNC('DECADE', DATE '0002-12-31 BC'); -- 0011-01-01 BC
            date_trunc            
 ---------------------------------
- Mon Jan 01 00:00:00 0011 PST BC
+ Mon Jan 01 00:00:00 0011 LMT BC
 (1 row)
 
 --
diff --git a/src/test/regress/expected/horology.out b/src/test/regress/expected/horology.out
index f1578711ad8b8..e4b57f62159b5 100644
--- a/src/test/regress/expected/horology.out
+++ b/src/test/regress/expected/horology.out
@@ -1,11 +1,16 @@
 --
 -- HOROLOGY
 --
-SET DateStyle = 'Postgres, MDY';
-SHOW TimeZone;  -- Many of these tests depend on the prevailing setting
- TimeZone 
-----------
- PST8PDT
+SHOW TimeZone;  -- Many of these tests depend on the prevailing settings
+      TimeZone       
+---------------------
+ America/Los_Angeles
+(1 row)
+
+SHOW DateStyle;
+   DateStyle   
+---------------
+ Postgres, MDY
 (1 row)
 
 --
@@ -765,12 +770,12 @@ SELECT d1 + interval '1 year' AS one_year FROM TIMESTAMPTZ_TBL;
  Sat Feb 14 17:32:01 1998 PST
  Sun Feb 15 17:32:01 1998 PST
  Mon Feb 16 17:32:01 1998 PST
- Thu Feb 16 17:32:01 0096 PST BC
- Sun Feb 16 17:32:01 0098 PST
- Fri Feb 16 17:32:01 0598 PST
- Wed Feb 16 17:32:01 1098 PST
- Sun Feb 16 17:32:01 1698 PST
- Fri Feb 16 17:32:01 1798 PST
+ Thu Feb 16 17:32:01 0096 LMT BC
+ Sun Feb 16 17:32:01 0098 LMT
+ Fri Feb 16 17:32:01 0598 LMT
+ Wed Feb 16 17:32:01 1098 LMT
+ Sun Feb 16 17:32:01 1698 LMT
+ Fri Feb 16 17:32:01 1798 LMT
  Wed Feb 16 17:32:01 1898 PST
  Mon Feb 16 17:32:01 1998 PST
  Sun Feb 16 17:32:01 2098 PST
@@ -836,12 +841,12 @@ SELECT d1 - interval '1 year' AS one_year FROM TIMESTAMPTZ_TBL;
  Wed Feb 14 17:32:01 1996 PST
  Thu Feb 15 17:32:01 1996 PST
  Fri Feb 16 17:32:01 1996 PST
- Mon Feb 16 17:32:01 0098 PST BC
- Thu Feb 16 17:32:01 0096 PST
- Tue Feb 16 17:32:01 0596 PST
- Sun Feb 16 17:32:01 1096 PST
- Thu Feb 16 17:32:01 1696 PST
- Tue Feb 16 17:32:01 1796 PST
+ Mon Feb 16 17:32:01 0098 LMT BC
+ Thu Feb 16 17:32:01 0096 LMT
+ Tue Feb 16 17:32:01 0596 LMT
+ Sun Feb 16 17:32:01 1096 LMT
+ Thu Feb 16 17:32:01 1696 LMT
+ Tue Feb 16 17:32:01 1796 LMT
  Sun Feb 16 17:32:01 1896 PST
  Fri Feb 16 17:32:01 1996 PST
  Thu Feb 16 17:32:01 2096 PST
@@ -2120,7 +2125,7 @@ SELECT '2020-10-05'::timestamptz > '2202020-10-05'::date as f;
 SELECT '4714-11-24 BC'::date::timestamptz;
            timestamptz           
 ---------------------------------
- Mon Nov 24 00:00:00 4714 PST BC
+ Mon Nov 24 00:00:00 4714 LMT BC
 (1 row)
 
 SET TimeZone = 'UTC-2';
@@ -2627,13 +2632,13 @@ RESET DateStyle;
 SELECT to_timestamp('0097/Feb/16 --> 08:14:30', 'YYYY/Mon/DD --> HH:MI:SS');
          to_timestamp         
 ------------------------------
- Sat Feb 16 08:14:30 0097 PST
+ Sat Feb 16 08:14:30 0097 LMT
 (1 row)
 
 SELECT to_timestamp('97/2/16 8:14:30', 'FMYYYY/FMMM/FMDD FMHH:FMMI:FMSS');
          to_timestamp         
 ------------------------------
- Sat Feb 16 08:14:30 0097 PST
+ Sat Feb 16 08:14:30 0097 LMT
 (1 row)
 
 SELECT to_timestamp('2011$03!18 23_38_15', 'YYYY-MM-DD HH24:MI:SS');
@@ -2670,7 +2675,7 @@ SELECT to_timestamp('My birthday-> Year: 1976, Month: May, Day: 16',
 SELECT to_timestamp('1,582nd VIII 21', 'Y,YYYth FMRM DD');
          to_timestamp         
 ------------------------------
- Sat Aug 21 00:00:00 1582 PST
+ Sat Aug 21 00:00:00 1582 LMT
 (1 row)
 
 SELECT to_timestamp('15 "text between quote marks" 98 54 45',
@@ -2734,7 +2739,7 @@ SELECT to_timestamp('1997 AD 11 16', 'YYYY BC MM DD');
 SELECT to_timestamp('1997 BC 11 16', 'YYYY BC MM DD');
           to_timestamp           
 ---------------------------------
- Tue Nov 16 00:00:00 1997 PST BC
+ Tue Nov 16 00:00:00 1997 LMT BC
 (1 row)
 
 SELECT to_timestamp('1997 A.D. 11 16', 'YYYY B.C. MM DD');
@@ -2746,7 +2751,7 @@ SELECT to_timestamp('1997 A.D. 11 16', 'YYYY B.C. MM DD');
 SELECT to_timestamp('1997 B.C. 11 16', 'YYYY B.C. MM DD');
           to_timestamp           
 ---------------------------------
- Tue Nov 16 00:00:00 1997 PST BC
+ Tue Nov 16 00:00:00 1997 LMT BC
 (1 row)
 
 SELECT to_timestamp('9-1116', 'Y-MMDD');
@@ -3016,19 +3021,19 @@ SELECT to_date('-44-02-01 BC','YYYY-MM-DD BC');
 SELECT to_timestamp('44-02-01 11:12:13 BC','YYYY-MM-DD HH24:MI:SS BC');
           to_timestamp           
 ---------------------------------
- Fri Feb 01 11:12:13 0044 PST BC
+ Fri Feb 01 11:12:13 0044 LMT BC
 (1 row)
 
 SELECT to_timestamp('-44-02-01 11:12:13','YYYY-MM-DD HH24:MI:SS');
           to_timestamp           
 ---------------------------------
- Fri Feb 01 11:12:13 0044 PST BC
+ Fri Feb 01 11:12:13 0044 LMT BC
 (1 row)
 
 SELECT to_timestamp('-44-02-01 11:12:13 BC','YYYY-MM-DD HH24:MI:SS BC');
          to_timestamp         
 ------------------------------
- Mon Feb 01 11:12:13 0044 PST
+ Mon Feb 01 11:12:13 0044 LMT
 (1 row)
 
 --
diff --git a/src/test/regress/expected/timestamptz.out b/src/test/regress/expected/timestamptz.out
index 812a8365112a6..2a30f4861c425 100644
--- a/src/test/regress/expected/timestamptz.out
+++ b/src/test/regress/expected/timestamptz.out
@@ -293,12 +293,12 @@ SELECT d1 FROM TIMESTAMPTZ_TBL;
  Fri Feb 14 17:32:01 1997 PST
  Sat Feb 15 17:32:01 1997 PST
  Sun Feb 16 17:32:01 1997 PST
- Tue Feb 16 17:32:01 0097 PST BC
- Sat Feb 16 17:32:01 0097 PST
- Thu Feb 16 17:32:01 0597 PST
- Tue Feb 16 17:32:01 1097 PST
- Sat Feb 16 17:32:01 1697 PST
- Thu Feb 16 17:32:01 1797 PST
+ Tue Feb 16 17:32:01 0097 LMT BC
+ Sat Feb 16 17:32:01 0097 LMT
+ Thu Feb 16 17:32:01 0597 LMT
+ Tue Feb 16 17:32:01 1097 LMT
+ Sat Feb 16 17:32:01 1697 LMT
+ Thu Feb 16 17:32:01 1797 LMT
  Tue Feb 16 17:32:01 1897 PST
  Sun Feb 16 17:32:01 1997 PST
  Sat Feb 16 17:32:01 2097 PST
@@ -322,19 +322,19 @@ SELECT d1 FROM TIMESTAMPTZ_TBL;
 SELECT '4714-11-24 00:00:00+00 BC'::timestamptz;
            timestamptz           
 ---------------------------------
- Sun Nov 23 16:00:00 4714 PST BC
+ Sun Nov 23 16:07:02 4714 LMT BC
 (1 row)
 
 SELECT '4714-11-23 16:00:00-08 BC'::timestamptz;
            timestamptz           
 ---------------------------------
- Sun Nov 23 16:00:00 4714 PST BC
+ Sun Nov 23 16:07:02 4714 LMT BC
 (1 row)
 
 SELECT 'Sun Nov 23 16:00:00 4714 PST BC'::timestamptz;
            timestamptz           
 ---------------------------------
- Sun Nov 23 16:00:00 4714 PST BC
+ Sun Nov 23 16:07:02 4714 LMT BC
 (1 row)
 
 SELECT '4714-11-23 23:59:59+00 BC'::timestamptz;  -- out of range
@@ -424,12 +424,12 @@ SELECT d1 FROM TIMESTAMPTZ_TBL
 ---------------------------------
  -infinity
  Wed Dec 31 16:00:00 1969 PST
- Tue Feb 16 17:32:01 0097 PST BC
- Sat Feb 16 17:32:01 0097 PST
- Thu Feb 16 17:32:01 0597 PST
- Tue Feb 16 17:32:01 1097 PST
- Sat Feb 16 17:32:01 1697 PST
- Thu Feb 16 17:32:01 1797 PST
+ Tue Feb 16 17:32:01 0097 LMT BC
+ Sat Feb 16 17:32:01 0097 LMT
+ Thu Feb 16 17:32:01 0597 LMT
+ Tue Feb 16 17:32:01 1097 LMT
+ Sat Feb 16 17:32:01 1697 LMT
+ Thu Feb 16 17:32:01 1797 LMT
  Tue Feb 16 17:32:01 1897 PST
  Wed Feb 28 17:32:01 1996 PST
  Thu Feb 29 17:32:01 1996 PST
@@ -492,12 +492,12 @@ SELECT d1 FROM TIMESTAMPTZ_TBL
  Fri Feb 14 17:32:01 1997 PST
  Sat Feb 15 17:32:01 1997 PST
  Sun Feb 16 17:32:01 1997 PST
- Tue Feb 16 17:32:01 0097 PST BC
- Sat Feb 16 17:32:01 0097 PST
- Thu Feb 16 17:32:01 0597 PST
- Tue Feb 16 17:32:01 1097 PST
- Sat Feb 16 17:32:01 1697 PST
- Thu Feb 16 17:32:01 1797 PST
+ Tue Feb 16 17:32:01 0097 LMT BC
+ Sat Feb 16 17:32:01 0097 LMT
+ Thu Feb 16 17:32:01 0597 LMT
+ Tue Feb 16 17:32:01 1097 LMT
+ Sat Feb 16 17:32:01 1697 LMT
+ Thu Feb 16 17:32:01 1797 LMT
  Tue Feb 16 17:32:01 1897 PST
  Sun Feb 16 17:32:01 1997 PST
  Sat Feb 16 17:32:01 2097 PST
@@ -524,12 +524,12 @@ SELECT d1 FROM TIMESTAMPTZ_TBL
  -infinity
  Wed Dec 31 16:00:00 1969 PST
  Thu Jan 02 00:00:00 1997 PST
- Tue Feb 16 17:32:01 0097 PST BC
- Sat Feb 16 17:32:01 0097 PST
- Thu Feb 16 17:32:01 0597 PST
- Tue Feb 16 17:32:01 1097 PST
- Sat Feb 16 17:32:01 1697 PST
- Thu Feb 16 17:32:01 1797 PST
+ Tue Feb 16 17:32:01 0097 LMT BC
+ Sat Feb 16 17:32:01 0097 LMT
+ Thu Feb 16 17:32:01 0597 LMT
+ Tue Feb 16 17:32:01 1097 LMT
+ Sat Feb 16 17:32:01 1697 LMT
+ Thu Feb 16 17:32:01 1797 LMT
  Tue Feb 16 17:32:01 1897 PST
  Wed Feb 28 17:32:01 1996 PST
  Thu Feb 29 17:32:01 1996 PST
@@ -883,12 +883,12 @@ SELECT d1 as timestamptz,
  Fri Feb 14 17:32:01 1997 PST    |      1997 |     2 |  14 |   17 |     32 |      1
  Sat Feb 15 17:32:01 1997 PST    |      1997 |     2 |  15 |   17 |     32 |      1
  Sun Feb 16 17:32:01 1997 PST    |      1997 |     2 |  16 |   17 |     32 |      1
- Tue Feb 16 17:32:01 0097 PST BC |       -97 |     2 |  16 |   17 |     32 |      1
- Sat Feb 16 17:32:01 0097 PST    |        97 |     2 |  16 |   17 |     32 |      1
- Thu Feb 16 17:32:01 0597 PST    |       597 |     2 |  16 |   17 |     32 |      1
- Tue Feb 16 17:32:01 1097 PST    |      1097 |     2 |  16 |   17 |     32 |      1
- Sat Feb 16 17:32:01 1697 PST    |      1697 |     2 |  16 |   17 |     32 |      1
- Thu Feb 16 17:32:01 1797 PST    |      1797 |     2 |  16 |   17 |     32 |      1
+ Tue Feb 16 17:32:01 0097 LMT BC |       -97 |     2 |  16 |   17 |     32 |      1
+ Sat Feb 16 17:32:01 0097 LMT    |        97 |     2 |  16 |   17 |     32 |      1
+ Thu Feb 16 17:32:01 0597 LMT    |       597 |     2 |  16 |   17 |     32 |      1
+ Tue Feb 16 17:32:01 1097 LMT    |      1097 |     2 |  16 |   17 |     32 |      1
+ Sat Feb 16 17:32:01 1697 LMT    |      1697 |     2 |  16 |   17 |     32 |      1
+ Thu Feb 16 17:32:01 1797 LMT    |      1797 |     2 |  16 |   17 |     32 |      1
  Tue Feb 16 17:32:01 1897 PST    |      1897 |     2 |  16 |   17 |     32 |      1
  Sun Feb 16 17:32:01 1997 PST    |      1997 |     2 |  16 |   17 |     32 |      1
  Sat Feb 16 17:32:01 2097 PST    |      2097 |     2 |  16 |   17 |     32 |      1
@@ -957,12 +957,12 @@ SELECT d1 as timestamptz,
  Fri Feb 14 17:32:01 1997 PST    |       1 |  1000 |  1000000
  Sat Feb 15 17:32:01 1997 PST    |       1 |  1000 |  1000000
  Sun Feb 16 17:32:01 1997 PST    |       1 |  1000 |  1000000
- Tue Feb 16 17:32:01 0097 PST BC |       1 |  1000 |  1000000
- Sat Feb 16 17:32:01 0097 PST    |       1 |  1000 |  1000000
- Thu Feb 16 17:32:01 0597 PST    |       1 |  1000 |  1000000
- Tue Feb 16 17:32:01 1097 PST    |       1 |  1000 |  1000000
- Sat Feb 16 17:32:01 1697 PST    |       1 |  1000 |  1000000
- Thu Feb 16 17:32:01 1797 PST    |       1 |  1000 |  1000000
+ Tue Feb 16 17:32:01 0097 LMT BC |       1 |  1000 |  1000000
+ Sat Feb 16 17:32:01 0097 LMT    |       1 |  1000 |  1000000
+ Thu Feb 16 17:32:01 0597 LMT    |       1 |  1000 |  1000000
+ Tue Feb 16 17:32:01 1097 LMT    |       1 |  1000 |  1000000
+ Sat Feb 16 17:32:01 1697 LMT    |       1 |  1000 |  1000000
+ Thu Feb 16 17:32:01 1797 LMT    |       1 |  1000 |  1000000
  Tue Feb 16 17:32:01 1897 PST    |       1 |  1000 |  1000000
  Sun Feb 16 17:32:01 1997 PST    |       1 |  1000 |  1000000
  Sat Feb 16 17:32:01 2097 PST    |       1 |  1000 |  1000000
@@ -1032,12 +1032,12 @@ SELECT d1 as timestamptz,
  Fri Feb 14 17:32:01 1997 PST    |      1997 |    7 |      5 |   5 |  45
  Sat Feb 15 17:32:01 1997 PST    |      1997 |    7 |      6 |   6 |  46
  Sun Feb 16 17:32:01 1997 PST    |      1997 |    7 |      7 |   0 |  47
- Tue Feb 16 17:32:01 0097 PST BC |       -97 |    7 |      2 |   2 |  47
- Sat Feb 16 17:32:01 0097 PST    |        97 |    7 |      6 |   6 |  47
- Thu Feb 16 17:32:01 0597 PST    |       597 |    7 |      4 |   4 |  47
- Tue Feb 16 17:32:01 1097 PST    |      1097 |    7 |      2 |   2 |  47
- Sat Feb 16 17:32:01 1697 PST    |      1697 |    7 |      6 |   6 |  47
- Thu Feb 16 17:32:01 1797 PST    |      1797 |    7 |      4 |   4 |  47
+ Tue Feb 16 17:32:01 0097 LMT BC |       -97 |    7 |      2 |   2 |  47
+ Sat Feb 16 17:32:01 0097 LMT    |        97 |    7 |      6 |   6 |  47
+ Thu Feb 16 17:32:01 0597 LMT    |       597 |    7 |      4 |   4 |  47
+ Tue Feb 16 17:32:01 1097 LMT    |      1097 |    7 |      2 |   2 |  47
+ Sat Feb 16 17:32:01 1697 LMT    |      1697 |    7 |      6 |   6 |  47
+ Thu Feb 16 17:32:01 1797 LMT    |      1797 |    7 |      4 |   4 |  47
  Tue Feb 16 17:32:01 1897 PST    |      1897 |    7 |      2 |   2 |  47
  Sun Feb 16 17:32:01 1997 PST    |      1997 |    7 |      7 |   0 |  47
  Sat Feb 16 17:32:01 2097 PST    |      2097 |    7 |      6 |   6 |  47
@@ -1109,12 +1109,12 @@ SELECT d1 as timestamptz,
  Fri Feb 14 17:32:01 1997 PST    |       199 |        20 |          2 |   2450495 |    855970321
  Sat Feb 15 17:32:01 1997 PST    |       199 |        20 |          2 |   2450496 |    856056721
  Sun Feb 16 17:32:01 1997 PST    |       199 |        20 |          2 |   2450497 |    856143121
- Tue Feb 16 17:32:01 0097 PST BC |       -10 |        -1 |         -1 |   1686043 | -65192682479
- Sat Feb 16 17:32:01 0097 PST    |         9 |         1 |          1 |   1756537 | -59102000879
- Thu Feb 16 17:32:01 0597 PST    |        59 |         6 |          1 |   1939158 | -43323546479
- Tue Feb 16 17:32:01 1097 PST    |       109 |        11 |          2 |   2121779 | -27545092079
- Sat Feb 16 17:32:01 1697 PST    |       169 |        17 |          2 |   2340925 |  -8610877679
- Thu Feb 16 17:32:01 1797 PST    |       179 |        18 |          2 |   2377449 |  -5455204079
+ Tue Feb 16 17:32:01 0097 LMT BC |       -10 |        -1 |         -1 |   1686043 | -65192682901
+ Sat Feb 16 17:32:01 0097 LMT    |         9 |         1 |          1 |   1756537 | -59102001301
+ Thu Feb 16 17:32:01 0597 LMT    |        59 |         6 |          1 |   1939158 | -43323546901
+ Tue Feb 16 17:32:01 1097 LMT    |       109 |        11 |          2 |   2121779 | -27545092501
+ Sat Feb 16 17:32:01 1697 LMT    |       169 |        17 |          2 |   2340925 |  -8610878101
+ Thu Feb 16 17:32:01 1797 LMT    |       179 |        18 |          2 |   2377449 |  -5455204501
  Tue Feb 16 17:32:01 1897 PST    |       189 |        19 |          2 |   2413973 |  -2299530479
  Sun Feb 16 17:32:01 1997 PST    |       199 |        20 |          2 |   2450497 |    856143121
  Sat Feb 16 17:32:01 2097 PST    |       209 |        21 |          3 |   2487022 |   4011903121
@@ -1184,12 +1184,12 @@ SELECT d1 as timestamptz,
  Fri Feb 14 17:32:01 1997 PST    |   -28800 |            -8 |               0
  Sat Feb 15 17:32:01 1997 PST    |   -28800 |            -8 |               0
  Sun Feb 16 17:32:01 1997 PST    |   -28800 |            -8 |               0
- Tue Feb 16 17:32:01 0097 PST BC |   -28800 |            -8 |               0
- Sat Feb 16 17:32:01 0097 PST    |   -28800 |            -8 |               0
- Thu Feb 16 17:32:01 0597 PST    |   -28800 |            -8 |               0
- Tue Feb 16 17:32:01 1097 PST    |   -28800 |            -8 |               0
- Sat Feb 16 17:32:01 1697 PST    |   -28800 |            -8 |               0
- Thu Feb 16 17:32:01 1797 PST    |   -28800 |            -8 |               0
+ Tue Feb 16 17:32:01 0097 LMT BC |   -28378 |            -7 |             -52
+ Sat Feb 16 17:32:01 0097 LMT    |   -28378 |            -7 |             -52
+ Thu Feb 16 17:32:01 0597 LMT    |   -28378 |            -7 |             -52
+ Tue Feb 16 17:32:01 1097 LMT    |   -28378 |            -7 |             -52
+ Sat Feb 16 17:32:01 1697 LMT    |   -28378 |            -7 |             -52
+ Thu Feb 16 17:32:01 1797 LMT    |   -28378 |            -7 |             -52
  Tue Feb 16 17:32:01 1897 PST    |   -28800 |            -8 |               0
  Sun Feb 16 17:32:01 1997 PST    |   -28800 |            -8 |               0
  Sat Feb 16 17:32:01 2097 PST    |   -28800 |            -8 |               0
@@ -1263,12 +1263,12 @@ SELECT d1 as "timestamp",
  Fri Feb 14 17:32:01 1997 PST    |      1000000 |     1000.000 |  1.000000 |   2450495 |    855970321.000000
  Sat Feb 15 17:32:01 1997 PST    |      1000000 |     1000.000 |  1.000000 |   2450496 |    856056721.000000
  Sun Feb 16 17:32:01 1997 PST    |      1000000 |     1000.000 |  1.000000 |   2450497 |    856143121.000000
- Tue Feb 16 17:32:01 0097 PST BC |      1000000 |     1000.000 |  1.000000 |   1686043 | -65192682479.000000
- Sat Feb 16 17:32:01 0097 PST    |      1000000 |     1000.000 |  1.000000 |   1756537 | -59102000879.000000
- Thu Feb 16 17:32:01 0597 PST    |      1000000 |     1000.000 |  1.000000 |   1939158 | -43323546479.000000
- Tue Feb 16 17:32:01 1097 PST    |      1000000 |     1000.000 |  1.000000 |   2121779 | -27545092079.000000
- Sat Feb 16 17:32:01 1697 PST    |      1000000 |     1000.000 |  1.000000 |   2340925 |  -8610877679.000000
- Thu Feb 16 17:32:01 1797 PST    |      1000000 |     1000.000 |  1.000000 |   2377449 |  -5455204079.000000
+ Tue Feb 16 17:32:01 0097 LMT BC |      1000000 |     1000.000 |  1.000000 |   1686043 | -65192682901.000000
+ Sat Feb 16 17:32:01 0097 LMT    |      1000000 |     1000.000 |  1.000000 |   1756537 | -59102001301.000000
+ Thu Feb 16 17:32:01 0597 LMT    |      1000000 |     1000.000 |  1.000000 |   1939158 | -43323546901.000000
+ Tue Feb 16 17:32:01 1097 LMT    |      1000000 |     1000.000 |  1.000000 |   2121779 | -27545092501.000000
+ Sat Feb 16 17:32:01 1697 LMT    |      1000000 |     1000.000 |  1.000000 |   2340925 |  -8610878101.000000
+ Thu Feb 16 17:32:01 1797 LMT    |      1000000 |     1000.000 |  1.000000 |   2377449 |  -5455204501.000000
  Tue Feb 16 17:32:01 1897 PST    |      1000000 |     1000.000 |  1.000000 |   2413973 |  -2299530479.000000
  Sun Feb 16 17:32:01 1997 PST    |      1000000 |     1000.000 |  1.000000 |   2450497 |    856143121.000000
  Sat Feb 16 17:32:01 2097 PST    |      1000000 |     1000.000 |  1.000000 |   2487022 |   4011903121.000000
@@ -2193,7 +2193,7 @@ INSERT INTO TIMESTAMPTZ_TST VALUES(4, '1000000312 23:58:48 IST');
 SELECT * FROM TIMESTAMPTZ_TST ORDER BY a;
  a |               b                
 ---+--------------------------------
- 1 | Wed Mar 12 13:58:48 1000 PST
+ 1 | Wed Mar 12 14:05:50 1000 LMT
  2 | Sun Mar 12 14:58:48 10000 PDT
  3 | Sun Mar 12 14:58:48 100000 PDT
  3 | Sun Mar 12 14:58:48 10000 PDT
@@ -2304,7 +2304,14 @@ SELECT make_timestamptz(2008, 12, 10, 10, 10, 10, 'EDT');
  Wed Dec 10 09:10:10 2008 EST
 (1 row)
 
-SELECT make_timestamptz(2014, 12, 10, 10, 10, 10, 'PST8PDT');
+SELECT make_timestamptz(2014, 12, 10, 10, 10, 10, 'FOO8BAR');
+       make_timestamptz       
+------------------------------
+ Wed Dec 10 13:10:10 2014 EST
+(1 row)
+
+-- POSIX
+SELECT make_timestamptz(2014, 12, 10, 10, 10, 10, 'PST8PDT,M3.2.0,M11.1.0');
        make_timestamptz       
 ------------------------------
  Wed Dec 10 13:10:10 2014 EST
diff --git a/src/test/regress/pg_regress.c b/src/test/regress/pg_regress.c
index b23ced9440045..b23d9f3bf9788 100644
--- a/src/test/regress/pg_regress.c
+++ b/src/test/regress/pg_regress.c
@@ -790,7 +790,7 @@ initialize_environment(void)
 	/*
 	 * Set timezone and datestyle for datetime-related tests
 	 */
-	setenv("PGTZ", "PST8PDT", 1);
+	setenv("PGTZ", "America/Los_Angeles", 1);
 	setenv("PGDATESTYLE", "Postgres, MDY", 1);
 
 	/*
diff --git a/src/test/regress/sql/horology.sql b/src/test/regress/sql/horology.sql
index 0ab17d433f994..13f86ce8fc032 100644
--- a/src/test/regress/sql/horology.sql
+++ b/src/test/regress/sql/horology.sql
@@ -1,9 +1,9 @@
 --
 -- HOROLOGY
 --
-SET DateStyle = 'Postgres, MDY';
 
-SHOW TimeZone;  -- Many of these tests depend on the prevailing setting
+SHOW TimeZone;  -- Many of these tests depend on the prevailing settings
+SHOW DateStyle;
 
 --
 -- Test various input formats
diff --git a/src/test/regress/sql/timestamptz.sql b/src/test/regress/sql/timestamptz.sql
index 62593d8c6443a..13fe425f2c9f3 100644
--- a/src/test/regress/sql/timestamptz.sql
+++ b/src/test/regress/sql/timestamptz.sql
@@ -414,7 +414,10 @@ SELECT make_timestamptz(1910, 12, 24, 0, 0, 0, 'Nehwon/Lankhmar');
 -- abbreviations
 SELECT make_timestamptz(2008, 12, 10, 10, 10, 10, 'EST');
 SELECT make_timestamptz(2008, 12, 10, 10, 10, 10, 'EDT');
-SELECT make_timestamptz(2014, 12, 10, 10, 10, 10, 'PST8PDT');
+SELECT make_timestamptz(2014, 12, 10, 10, 10, 10, 'FOO8BAR');
+
+-- POSIX
+SELECT make_timestamptz(2014, 12, 10, 10, 10, 10, 'PST8PDT,M3.2.0,M11.1.0');
 
 RESET TimeZone;

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File postgresql-testsuite-timezone-fix.patch of Package postgresql14 (Revision 1e1ba9bc6a460e1607968febe6c098a4)

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