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E.16. Release 8.2.8

Release Date: never released

This release contains a variety of fixes from 8.2.7. For information about new features in the 8.2 major release, see Section E.24.

E.16.1. Migration to Version 8.2.8

A dump/restore is not required for those running 8.2.X. However, if you are upgrading from a version earlier than 8.2.7, see the release notes for 8.2.7.

E.16.2. Changes

  • Fix ERRORDATA_STACK_SIZE exceeded crash that occurred on Windows when using UTF-8 database encoding and a different client encoding (Tom)

  • Fix ALTER TABLE ADD COLUMN ... PRIMARY KEY so that the new column is correctly checked to see if it's been initialized to all non-nulls (Brendan Jurd)

    Previous versions neglected to check this requirement at all.

  • Fix possible CREATE TABLE failure when inheriting the "same" constraint from multiple parent relations that inherited that constraint from a common ancestor (Tom)

  • Fix pg_get_ruledef() to show the alias, if any, attached to the target table of an UPDATE or DELETE (Tom)

  • Fix GIN bug that could result in a too many LWLocks taken failure (Teodor)

  • Avoid possible crash when decompressing corrupted data (Zdenek Kotala)

  • Repair two places where SIGTERM exit of a backend could leave corrupted state in shared memory (Tom)

    Neither case is very important if SIGTERM is used to shut down the whole database cluster together, but there was a problem if someone tried to SIGTERM individual backends.

  • Fix conversions between ISO-8859-5 and other encodings to handle Cyrillic "Yo" characters (e and E with two dots) (Sergey Burladyan)

  • Fix several datatype input functions, notably array_in(), that were allowing unused bytes in their results to contain uninitialized, unpredictable values (Tom)

    This could lead to failures in which two apparently identical literal values were not seen as equal, resulting in the parser complaining about unmatched ORDER BY and DISTINCT expressions.

  • Fix a corner case in regular-expression substring matching (substring(string from pattern)) (Tom)

    The problem occurs when there is a match to the pattern overall but the user has specified a parenthesized subexpression and that subexpression hasn't got a match. An example is substring('foo' from 'foo(bar)?'). This should return NULL, since (bar) isn't matched, but it was mistakenly returning the whole-pattern match instead (ie, foo).

  • Update time zone data files to tzdata release 2008c (for DST law changes in Morocco, Iraq, Choibalsan, Pakistan, Syria, Cuba, and Argentina/San_Luis)

  • Fix incorrect result from ecpg's PGTYPEStimestamp_sub() function (Michael)

  • Fix broken GiST comparison function for contrib/tsearch2's tsquery type (Teodor)

  • Fix possible crashes in contrib/cube functions (Tom)

  • Fix core dump in contrib/xml2's xpath_table() function when the input query returns a NULL value (Tom)

  • Fix contrib/xml2's makefile to not override CFLAGS (Tom)

  • Fix DatumGetBool macro to not fail with gcc 4.3 (Tom)

    This problem affects "old style" (V0) C functions that return boolean. The fix is already in 8.3, but the need to back-patch it was not realized at the time.

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