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Commit453f538

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amcheck: In verify_heapam, allows tuples with xmin 0.
Commite88754a caused that caseto be reported as corruption, but Peter Geoghegan pointed out thatit can legitimately happen in the case of a speculative insertionthat aborts, so we'd better not flag it as corruption after all.Back-patch to v14, like the commit that introduced the issue.Discussion:http://postgr.es/m/CAH2-WzmEabzcPTxSY-NXKH6Qt3FkAPYHGQSe2PtvGgj17ZQkCw@mail.gmail.com
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‎contrib/amcheck/verify_heapam.c‎

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -739,8 +739,7 @@ check_tuple_visibility(HeapCheckContext *ctx)
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switch (get_xid_status(xmin,ctx,&xmin_status))
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{
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caseXID_INVALID:
742-
report_corruption(ctx,
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pstrdup("xmin is invalid"));
742+
/* Could be the result of a speculative insertion that aborted. */
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return false;
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caseXID_BOUNDS_OK:
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break;

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