Release date: 2011-09-26
This release contains a variety of fixes from 8.2.21. For information about new features in the 8.2 major release, see Section E.229.
The PostgreSQL community will stop releasing updates for the 8.2.X release series in December 2011. Users are encouraged to update to a newer release branch soon.
A dump/restore is not required for those running 8.2.X. However, if you are upgrading from a version earlier than 8.2.14, see Section E.215.
Fix multiple bugs in GiST index page split processing (Heikki Linnakangas)
The probability of occurrence was low, but these could lead to index corruption.
Avoid possibly accessing off the end of memory in
ANALYZE (Noah Misch)
This fixes a very-low-probability server crash scenario.
Fix race condition in relcache init file invalidation (Tom Lane)
There was a window wherein a new backend process could read a stale init file but miss the inval messages that would tell it the data is stale. The result would be bizarre failures in catalog accesses, typically “could not read block 0 in file ...” later during startup.
Fix memory leak at end of a GiST index scan (Tom Lane)
Commands that perform many separate GiST index scans, such as verification of a new GiST-based exclusion constraint on a table already containing many rows, could transiently require large amounts of memory due to this leak.
Fix performance problem when constructing a large, lossy bitmap (Tom Lane)
Fix array- and path-creating functions to ensure padding bytes are zeroes (Tom Lane)
This avoids some situations where the planner will think that semantically-equal constants are not equal, resulting in poor optimization.
Work around gcc 4.6.0 bug that breaks WAL replay (Tom Lane)
This could lead to loss of committed transactions after a server crash.
Fix dump bug for
in a view (Tom Lane)
UPDATE/SHARE on sequences (Tom Lane)
This operation doesn't work as expected and can lead to failures.
Defend against integer overflow when computing size of a hash table (Tom Lane)
Fix portability bugs in use of credentials control messages for “peer” authentication (Tom Lane)
Fix typo in
seed initialization (Andres Freund)
This led to failure to use all bits of the provided
seed. This function is not used on most platforms (only
the potential security exposure from a
less-random-than-expected seed seems minimal in any
Avoid integer overflow when the sum of
OFFSET values exceeds 2^63 (Heikki
Add overflow checks to
int8 versions of
Fix trailing-zero removal in
to_char() (Marti Raudsepp)
In a format with
no digit positions after the decimal point, zeroes to the
left of the decimal point could be removed
avoid overflow for inputs close to 2^63 (Tom Lane)
Fix psql's counting
of script file line numbers during
COPY from a different file (Tom
direct-to-database mode for
pg_restore could emit
incorrect commands when restoring directly to a database
server from an archive file that had been made with
Fix write-past-buffer-end and memory leak in libpq's LDAP service lookup code (Albe Laurenz)
In libpq, avoid failures when using nonblocking I/O and an SSL connection (Martin Pihlak, Tom Lane)
Improve libpq's handling of failures during connection startup (Tom Lane)
In particular, the response to a server report of
fork() failure during SSL
connection startup is now saner.
Make ecpglib write
double values with 15 digits
precision (Akira Kurosawa)
Apply upstream fix for blowfish signed-character bug (CVE-2011-2483) (Tom Lane)
blowfish encryption code could give wrong results on
platforms where char is signed (which is most), leading
to encrypted passwords being weaker than they should
Fix memory leak in
contrib/seg (Heikki Linnakangas)
give consistent results for empty indexes (Tom Lane)
Allow building with perl 5.14 (Alex Hunsaker)
Update configure script's method for probing existence of system functions (Tom Lane)
The version of autoconf we used in 8.3 and 8.2 could be fooled by compilers that perform link-time optimization.
Fix assorted issues with build and install file paths containing spaces (Tom Lane)
Update time zone data files to tzdata release 2011i for DST law changes in Canada, Egypt, Russia, Samoa, and South Sudan.
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