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| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2012-02-29 15:22:49 +0200 |
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| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2012-02-29 15:43:43 +0200 |
| commit | 86073a2b7acc58fce8701a9207a46adb41fbd8cc (patch) | |
| tree | 1b211ccf322759b1ac88c4acafcd957dddc749b1 /src/backend/access/gist/gistxlog.c | |
| parent | 57b100fe0fb1d0d5803789d3113b89fa18a34fad (diff) | |
| download | postgresql-86073a2b7acc58fce8701a9207a46adb41fbd8cc.tar.gz postgresql-86073a2b7acc58fce8701a9207a46adb41fbd8cc.zip | |
Correctly detect SSI conflicts of prepared transactions after crash.
A prepared transaction can get new conflicts in and out after preparing, so
we cannot rely on the in- and out-flags stored in the statefile at prepare-
time. As a quick fix, make the conservative assumption that after a restart,
all prepared transactions are considered to have both in- and out-conflicts.
That can lead to unnecessary rollbacks after a crash, but that shouldn't be
a big problem in practice; you don't want prepared transactions to hang
around for a long time anyway.
Dan Ports
Diffstat (limited to 'src/backend/access/gist/gistxlog.c')
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