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Commite93c0b8

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After PageSetAllVisible, use MarkBufferDirty.
Previously, we used SetBufferCommitInfoNeedsSave, but that's reallyintended for dirty-marks we can theoretically afford to lose, such ashint bits. As for 9.2, the PD_ALL_VISIBLE mustn't be lost in thisway, since we could then end up with a heap page that isn'tall-visible and a visibility map page that is all visible, causingindex-only scans to return wrong answers.
1 parentb5eccae commite93c0b8

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‎src/backend/commands/vacuumlazy.c

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -603,7 +603,7 @@ lazy_scan_heap(Relation onerel, LVRelStats *vacrelstats,
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if (!PageIsAllVisible(page))
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{
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PageSetAllVisible(page);
606-
SetBufferCommitInfoNeedsSave(buf);
606+
MarkBufferDirty(buf);
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}
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LockBuffer(buf,BUFFER_LOCK_UNLOCK);
@@ -838,7 +838,7 @@ lazy_scan_heap(Relation onerel, LVRelStats *vacrelstats,
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if (!PageIsAllVisible(page)&&all_visible)
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{
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PageSetAllVisible(page);
841-
SetBufferCommitInfoNeedsSave(buf);
841+
MarkBufferDirty(buf);
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}
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/*

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