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Commitf0e766b

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Fix memory leak in GIN index scans.
The code had a query-lifespan memory leak when encountering GIN entriesthat have posting lists (rather than posting trees, ie, there are arelatively small number of heap tuples containing this index key value).With a suitable data distribution this could add up to a lot of leakage.Problem seems to have been introduced by commit36a35c5, so back-patchto 9.4.Julien Rouhaud
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‎src/backend/access/gin/ginget.c‎

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@@ -281,6 +281,7 @@ collectMatchBitmap(GinBtreeData *btree, GinBtreeStack *stack,
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ipd=ginReadTuple(btree->ginstate,scanEntry->attnum,itup,&nipd);
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tbm_add_tuples(scanEntry->matchBitmap,ipd,nipd, false);
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scanEntry->predictNumberResult+=GinGetNPosting(itup);
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pfree(ipd);
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}
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/*

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