PostgreSQLLa base de données la plus sophistiquée au monde.

E.31. Release 8.3.15

[Note]

Release Date

2011-04-18

This release contains a variety of fixes from 8.3.14. For information about new features in the 8.3 major release, see Section E.46, « Release 8.3 ».

E.31.1. Migration to Version 8.3.15

A dump/restore is not required for those running 8.3.X. However, if you are upgrading from a version earlier than 8.3.8, see Section E.38, « Release 8.3.8 ».

E.31.2. Changes

  • Disallow including a composite type in itself (Tom Lane)

    This prevents scenarios wherein the server could recurse infinitely while processing the composite type. While there are some possible uses for such a structure, they don't seem compelling enough to justify the effort required to make sure it always works safely.

  • Avoid potential deadlock during catalog cache initialization (Nikhil Sontakke)

    In some cases the cache loading code would acquire share lock on a system index before locking the index's catalog. This could deadlock against processes trying to acquire exclusive locks in the other, more standard order.

  • Fix dangling-pointer problem in BEFORE ROW UPDATE trigger handling when there was a concurrent update to the target tuple (Tom Lane)

    This bug has been observed to result in intermittent « cannot extract system attribute from virtual tuple » failures while trying to do UPDATE RETURNING ctid. There is a very small probability of more serious errors, such as generating incorrect index entries for the updated tuple.

  • Disallow DROP TABLE when there are pending deferred trigger events for the table (Tom Lane)

    Formerly the DROP would go through, leading to « could not open relation with OID nnn » errors when the triggers were eventually fired.

  • Fix PL/Python memory leak involving array slices (Daniel Popowich)

  • Fix pg_restore to cope with long lines (over 1KB) in TOC files (Tom Lane)

  • Put in more safeguards against crashing due to division-by-zero with overly enthusiastic compiler optimization (Aurelien Jarno)

  • Support use of dlopen() in FreeBSD and OpenBSD on MIPS (Tom Lane)

    There was a hard-wired assumption that this system function was not available on MIPS hardware on these systems. Use a compile-time test instead, since more recent versions have it.

  • Fix compilation failures on HP-UX (Heikki Linnakangas)

  • Fix version-incompatibility problem with libintl on Windows (Hiroshi Inoue)

  • Fix usage of xcopy in Windows build scripts to work correctly under Windows 7 (Andrew Dunstan)

    This affects the build scripts only, not installation or usage.

  • Fix path separator used by pg_regress on Cygwin (Andrew Dunstan)

  • Update time zone data files to tzdata release 2011f for DST law changes in Chile, Cuba, Falkland Islands, Morocco, Samoa, and Turkey; also historical corrections for South Australia, Alaska, and Hawaii.