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Fix possible failure to mark hash metapage dirty.

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Report and suggested fix by Lixian Zou.  Amit Kapila put it
in the form of a patch and reviewed.

Discussion: http://postgr.es/m/151739848647.1239.12528851873396651946@wrigleys.postgresql.org
This commit is contained in:
Robert Haas
2018-02-01 15:21:13 -05:00
parent 94a2b07577
commit b94988fad5
1 changed files with 2 additions and 1 deletions
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3
src/backend/access/hash/hashovfl.c
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@ -341,9 +341,10 @@ found:
metap->hashm_mapp[metap->hashm_nmaps] = BufferGetBlockNumber(newmapbuf); metap->hashm_mapp[metap->hashm_nmaps] = BufferGetBlockNumber(newmapbuf);
metap->hashm_nmaps++; metap->hashm_nmaps++;
metap->hashm_spares[splitnum]++; metap->hashm_spares[splitnum]++;
MarkBufferDirty(metabuf);
} }
MarkBufferDirty(metabuf);
/* /*
* for new overflow page, we don't need to explicitly set the bit in * for new overflow page, we don't need to explicitly set the bit in
* bitmap page, as by default that will be set to "in use". * bitmap page, as by default that will be set to "in use".