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 conversions between ISO-8859-5 and other encodings to handle
Cyrillic "Yo" characters (e and E with
two dots) (Sergey Burladyan)
Fix a few datatype input functions
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,
Argentina/San_Luis, and Chile)
Fix incorrect result from ecpg's
PGTYPEStimestamp_sub() function (Michael)
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.
Fix longstanding LISTEN/NOTIFY
race condition (Tom)
In rare cases a session that had just executed a
LISTEN might not get a notification, even though
one would be expected because the concurrent transaction executing
NOTIFY was observed to commit later.
A side effect of the fix is that a transaction that has executed
a not-yet-committed LISTEN command will not see any
row in pg_listener for the LISTEN,
should it choose to look; formerly it would have. This behavior
was never documented one way or the other, but it is possible that
some applications depend on the old behavior.
Disallow LISTEN and UNLISTEN within a
prepared transaction (Tom)
This was formerly allowed but trying to do it had various unpleasant
consequences, notably that the originating backend could not exit
as long as an UNLISTEN remained uncommitted.
Fix rare crash when an error occurs during a query using a hash index
(Heikki)
Fix input of datetime values for February 29 in years BC (Tom)
The former coding was mistaken about which years were leap years.
Fix "unrecognized node type" error in some variants of
ALTER OWNER (Tom)
Fix pg_ctl to correctly extract the postmaster's port
number from command-line options (Itagaki Takahiro, Tom)
Previously, pg_ctl start -w could try to contact the
postmaster on the wrong port, leading to bogus reports of startup
failure.
Use -fwrapv to defend against possible misoptimization
in recent gcc versions (Tom)
This is known to be necessary when building PostgreSQL
with gcc 4.3 or later.
Fix display of constant expressions in ORDER BY
and GROUP BY (Tom)
An explicitly casted constant would be shown incorrectly. This could
for example lead to corruption of a view definition during
dump and reload.
Fix libpq to handle NOTICE messages correctly
during COPY OUT (Tom)
This failure has only been observed to occur when a user-defined
datatype's output routine issues a NOTICE, but there is no
guarantee it couldn't happen due to other causes.