diff options
| author | Thomas Munro <tmunro@postgresql.org> | 2023-07-03 16:20:01 +1200 |
|---|---|---|
| committer | Thomas Munro <tmunro@postgresql.org> | 2023-07-04 09:07:31 +1200 |
| commit | 126552c85c1cfb6ce6445159b8024cfa5631f33e (patch) | |
| tree | 43c4eb1f099a5c418cb42c28510fadc0ac62ba02 /src/tutorial/funcs.c | |
| parent | bcc93a389ce3862c9a15ae2f079d87bbc6a2228f (diff) | |
| download | postgresql-126552c85c1cfb6ce6445159b8024cfa5631f33e.tar.gz postgresql-126552c85c1cfb6ce6445159b8024cfa5631f33e.zip | |
Fix race in SSI interaction with gin fast path.
The ginfast.c code previously checked for conflicts in before locking
the relevant buffer, leaving a window where a RW conflict could be
missed. Re-order.
There was also a place where buffer ID and block number were confused
while trying to predicate-lock a page, noted by visual inspection.
Back-patch to all supported releases. Fixes one more problem discovered
with the reproducer from bug #17949, in this case when Dmitry tried
other index types.
Reported-by: Artem Anisimov <artem.anisimov.255@gmail.com>
Reported-by: Dmitry Dolgov <9erthalion6@gmail.com>
Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Discussion: https://postgr.es/m/17949-a0f17035294a55e2%40postgresql.org
Diffstat (limited to 'src/tutorial/funcs.c')
0 files changed, 0 insertions, 0 deletions