Public bug reported:

Imported from Debian bug http://bugs.debian.org/1093414:

Source: postgresql-17
Version: 17.2-1
Severity: serious
Tags: ftbfs

Hi,

The latest tzdata upload, version 2025a-1, causes the postgresql-17 to
FTBFS. The autopkgtest also fails and the log has more details about the
regression:

| 559s + head -100 /tmp/regress.6mRmSV/regression.diffs
| 559s diff -U3 
/tmp/autopkgtest-lxc.80ej6hz3/downtmp/build.oIq/src/src/test/regress/expected/timestamptz.out
 /tmp/regress.6mRmSV/results/timestamptz.out
| 559s --- 
/tmp/autopkgtest-lxc.80ej6hz3/downtmp/build.oIq/src/src/test/regress/expected/timestamptz.out
        2025-01-18 06:05:25.253406473 +0000
| 559s +++ /tmp/regress.6mRmSV/results/timestamptz.out  2025-01-18 
06:05:29.849506874 +0000
| 559s @@ -2391,7 +2391,7 @@
| 559s  SELECT make_timestamptz(1846, 12, 10, 0, 0, 0, 'Asia/Manila') AT TIME 
ZONE 'UTC';
| 559s           timezone         
| 559s  --------------------------
| 559s - Wed Dec 09 15:56:00 1846
| 559s + Wed Dec 09 15:56:08 1846
| 559s  (1 row)
| 559s  
| 559s  SELECT make_timestamptz(1881, 12, 10, 0, 0, 0, 'Europe/Paris') AT TIME 
ZONE 'UTC';
| 559s + exit 1
| 559s + rm -rf /tmp/regress.6mRmSV
| 559s autopkgtest [06:05:53]: test installcheck: -----------------------]

The full CI log is available there:
https://ci.debian.net/data/autopkgtest/testing/amd64/p/postgresql-17/56552910/log.gz

The testsuite failure is trigger by minor changes of historical data on
the Asia/Manila timezone. More precisely the LMT time used before 6th
September 1899 was refined and adjusted by +8 seconds, causing a
mismatch with postgresql-17 testsuite expectations.

The test should probably be updated, or maybe rather disabled as I am
not fully sure that timezone tests on such old dates really makes sense.

Regards
Aurelien

** Affects: postgresql-17 (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: postgresql-17 (Debian)
     Importance: Undecided
         Status: New

** Bug watch added: Debian Bug tracker #1093414
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1093414

** Changed in: postgresql-17 (Debian)
 Remote watch: None => Debian Bug tracker #1093414

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https://bugs.launchpad.net/bugs/2098518

Title:
  postgresql-17: FTBFS/autopkgtest failure with tzdata 2025a due to
  minor changes of historical data

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