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Log the correct ending timestamp in recovery_target_xid mode.

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When ending recovery based on recovery_target_xid matching with
recovery_target_inclusive = off, we printed an incorrect timestamp
(always 2000-01-01) in the "recovery stopping before ... transaction"
log message.  This is a consequence of sloppy refactoring in
c945af80c: the code to fetch recordXtime out of the commit/abort
record used to be executed unconditionally, but it was changed
to get called only in the RECOVERY_TARGET_TIME case.  We need only
flip the order of operations to restore the intended behavior.

Per report from Torsten Förtsch.  Back-patch to all supported
branches.

Discussion: https://postgr.es/m/CAKkG4_kUevPqbmyOfLajx7opAQk6Cvwkvx0HRcFjSPfRPTXanA@mail.gmail.com
This commit is contained in:
Tom Lane
2023-01-19 12:23:20 -05:00
parent 438e6b7240
commit 44e9e34266
1 changed files with 7 additions and 2 deletions
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9
src/backend/access/transam/xlogrecovery.c
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@@ -2548,8 +2548,13 @@ recoveryStopsBefore(XLogReaderState *record)
stopsHere = (recordXid == recoveryTargetXid); stopsHere = (recordXid == recoveryTargetXid);
} }
if (recoveryTarget == RECOVERY_TARGET_TIME && /*
getRecordTimestamp(record, &recordXtime)) * Note: we must fetch recordXtime regardless of recoveryTarget setting.
* We don't expect getRecordTimestamp ever to fail, since we already know
* this is a commit or abort record; but test its result anyway.
*/
if (getRecordTimestamp(record, &recordXtime) &&
recoveryTarget == RECOVERY_TARGET_TIME)
{ {
/* /*
* There can be many transactions that share the same commit time, so * There can be many transactions that share the same commit time, so