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Fix thinkos in BRIN summarization

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The previous commit contained a thinko that made a single-range
summarization request process from there to end of table.  Fix by
setting the correct end range point.  Per buildfarm.
This commit is contained in:
Alvaro Herrera
2017-11-03 20:36:32 +01:00
parent 49df45acd8
commit 1b890562b8
1 changed files with 4 additions and 1 deletions
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5
src/backend/access/brin/brin.c
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@ -1292,8 +1292,11 @@ brinsummarize(Relation index, Relation heapRel, BlockNumber pageRange,
if (pageRange == BRIN_ALL_BLOCKRANGES) if (pageRange == BRIN_ALL_BLOCKRANGES)
startBlk = 0; startBlk = 0;
else else
{
startBlk = (pageRange / pagesPerRange) * pagesPerRange; startBlk = (pageRange / pagesPerRange) * pagesPerRange;
if (startBlk >= heapNumBlocks) heapNumBlocks = Min(heapNumBlocks, startBlk + pagesPerRange);
}
if (startBlk > heapNumBlocks)
{ {
/* Nothing to do if start point is beyond end of table */ /* Nothing to do if start point is beyond end of table */
brinRevmapTerminate(revmap); brinRevmapTerminate(revmap);