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Commit601c01e

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Fix hot standby bug with GiST scans.
Don't reset the rightlink of a page when replaying a page update record.This was a leftover from pre-hot standby days, when it was not possible tohave scans concurrent with WAL replay. Resetting the right-link was notnecessary back then either, but it was done for the sake of tidiness. Butwith hot standby, it's wrong, because a concurrent scan might still need it.Backpatch all versions with hot standby, 9.0 and above.
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‎src/backend/access/gist/gistxlog.c

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Original file line numberDiff line numberDiff line change
@@ -182,7 +182,6 @@ gistRedoPageUpdateRecord(XLogRecPtr lsn, XLogRecord *record)
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GistPageSetLeaf(page);
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}
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GistPageGetOpaque(page)->rightlink=InvalidBlockNumber;
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PageSetLSN(page,lsn);
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MarkBufferDirty(buffer);
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UnlockReleaseBuffer(buffer);

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