Tom Lane 1986ca5ce5 Fix race condition in multixact code: it's possible to try to read a ...

multixact's starting offset before the offset has been stored into the
SLRU file.  A simple fix would be to hold the MultiXactGenLock until the
offset has been stored, but that looks like a big concurrency hit.  Instead
rely on knowledge that unset offsets will be zero, and loop when we see
a zero.  This requires a little extra hacking to ensure that zero is never
a valid value for the offset.  Problem reported by Matteo Beccati, fix
ideas from Martijn van Oosterhout, Alvaro Herrera, and Tom Lane.

2005-10-28 17:27:29 +00:00

..

common

Better solution to the problem of labeling whole-row Datums that are

2005-10-19 22:30:30 +00:00

gist

A few trivial code cleanups motivated by reading warnings generated

2005-10-18 01:06:24 +00:00

hash

A few trivial code cleanups motivated by reading warnings generated

2005-10-18 01:06:24 +00:00

heap

Standard pgindent run for 8.1.

2005-10-15 02:49:52 +00:00

index

Standard pgindent run for 8.1.

2005-10-15 02:49:52 +00:00

nbtree

A few trivial code cleanups motivated by reading warnings generated

2005-10-18 01:06:24 +00:00

rtree

Standard pgindent run for 8.1.

2005-10-15 02:49:52 +00:00

transam

Fix race condition in multixact code: it's possible to try to read a

2005-10-28 17:27:29 +00:00

Makefile

$Header: -> $PostgreSQL Changes ...

2003-11-29 19:52:15 +00:00