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There's a small window wherein a transaction is committed but not yet

on the finished list, and we shouldn't flag it as a potential conflictif so. We can also skip adding a doomed transaction to the list ofpossible conflicts because we know it won't commit.Dan Ports and Kevin Grittner.

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src/backend/storage/lmgr
- predicate.c

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`‎src/backend/storage/lmgr/predicate.c‎`

Lines changed: 3 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -1677,8 +1677,9 @@ RegisterSerializableTransactionInt(Snapshot snapshot)`
`1677`	`1677`	`othersxact!=NULL;`
`1678`	`1678`	`othersxact=NextPredXact(othersxact))`
`1679`	`1679`	`{`
`1680`		`-if (!SxactIsOnFinishedList(othersxact)&&`
`1681`		`-!SxactIsReadOnly(othersxact))`
	`1680`	`+if (!SxactIsCommitted(othersxact)`
	`1681`	`+&& !SxactIsDoomed(othersxact)`
	`1682`	`+&& !SxactIsReadOnly(othersxact))`
`1682`	`1683`	`{`
`1683`	`1684`	`SetPossibleUnsafeConflict(sxact,othersxact);`
`1684`	`1685`	`}`

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Commitbdaabb9

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`‎src/backend/storage/lmgr/predicate.c‎`

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