delta/postgresql.git, branch REL8_4_8

Tag 8.4.8.

2011-04-15T03:17:14+00:00

Translation updates

2011-04-14T20:30:28+00:00

Update release notes for releases 9.0.4, 8.4.8, 8.3.15, and 8.2.21.

2011-04-14T19:51:45+00:00

Ensure mark_dummy_rel doesn't create dangling pointers in RelOptInfos.

2011-04-13T22:56:54+00:00

When we are doing GEQO join planning, the current memory context is a
short-lived context that will be reset at the end of geqo_eval().  However,
the RelOptInfos for base relations are set up before that and then re-used
across many GEQO cycles.  Hence, any code that modifies a baserel during
join planning has to be careful not to put pointers to the short-lived
context into the baserel struct.  mark_dummy_rel got this wrong, leading to
easy-to-reproduce-once-you-know-how crashes in 8.4, as reported off-list by
Leo Carson of SDSC.  Some improvements made in 9.0 make it difficult to
demonstrate the crash in 9.0 or HEAD; but there's no doubt that there's
still a risk factor here, so patch all branches that have the function.
(Note: 8.3 has a similar function, but it's only applied to joinrels and
thus is not a hazard.)

Update time zone data files to tzdata release 2011f.

2011-04-13T22:04:46+00:00

DST law changes in Chile, Cuba, Falkland Islands, Morocco, Samoa, Turkey.
Historical corrections for South Australia, Alaska, Hawaii.

On IA64 architecture, we check the depth of the register stack in addition

2011-04-13T08:53:06+00:00

to the regular stack. The code to do that is platform and compiler specific,
add support for the HP-UX native compiler.

Fix broken pg_dump query.

2011-04-13T04:39:19+00:00

The 8.4 branch failed when talking to 7.0 servers.  Per testing requested
by Bruce.

Be more wary of missing statistics in eqjoinsel_semi().

2011-04-12T05:59:51+00:00

In particular, if we don't have real ndistinct estimates for both sides,
fall back to assuming that half of the left-hand rows have join partners.
This is what was done in 8.2 and 8.3 (cf nulltestsel() in those versions).
It's pretty stupid but it won't lead us to think that an antijoin produces
no rows out, as seen in recent example from Uwe Schroeder.

Have pg_upgrade properly preserve relfrozenxid in toast tables.

2011-04-08T16:08:06+00:00

This fixes a pg_upgrade bug that could lead to query errors when clog
files are improperly removed.

Avoid use of mixed slash style paths in arguments to xcopy in MSVC builds.

2011-04-08T02:16:43+00:00

Some versions of xcopy, notably on Windows 7 don't like it. Backpatch
to 8.3, where we first used xcopy.