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Commit7a5c9ca

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Initialize shared memory copy of ckptXidEpoch correctly when not in recovery.
This bug was introduced by commit 20d98ab6e4110087d1816cd105a40fcc8ce0a307,so backpatch this to 9.0-9.2 like that one.This fixes bug #6710, reported by Tarvi Pillessaar
1 parent4741e9a commit7a5c9ca

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lines changed
  • src/backend/access/transam

1 file changed

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‎src/backend/access/transam/xlog.c

Lines changed: 3 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -6227,11 +6227,14 @@ StartupXLOG(void)
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ereport(PANIC,
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(errmsg("invalid next transaction ID")));
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6230+
/* initialize shared memory variables from the checkpoint record */
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ShmemVariableCache->nextXid=checkPoint.nextXid;
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ShmemVariableCache->nextOid=checkPoint.nextOid;
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ShmemVariableCache->oidCount=0;
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MultiXactSetNextMXact(checkPoint.nextMulti,checkPoint.nextMultiOffset);
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SetTransactionIdLimit(checkPoint.oldestXid,checkPoint.oldestXidDB);
6236+
XLogCtl->ckptXidEpoch=checkPoint.nextXidEpoch;
6237+
XLogCtl->ckptXid=checkPoint.nextXid;
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/*
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* We must replay WAL entries using the same TimeLineID they were created
@@ -6330,10 +6333,6 @@ StartupXLOG(void)
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/* No need to hold ControlFileLock yet, we aren't up far enough */
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UpdateControlFile();
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6333-
/* initialize shared-memory copy of latest checkpoint XID/epoch */
6334-
XLogCtl->ckptXidEpoch=ControlFile->checkPointCopy.nextXidEpoch;
6335-
XLogCtl->ckptXid=ControlFile->checkPointCopy.nextXid;
6336-
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/* initialize our local copy of minRecoveryPoint */
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minRecoveryPoint=ControlFile->minRecoveryPoint;
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