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Use repalloc_huge() to enlarge a SPITupleTable's tuple pointer array.

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Commit 23a27b039d94ba35 widened the rows-stored counters to uint64, but
that's academic unless we allow the tuple pointer array to exceed 1GB.

(It might be a good idea to provide some other limit on how much storage
a SPITupleTable can eat.  On the other hand, there are plenty of other
ways to drive a backend into swap hell.)

Dagfinn Ilmari Mannsåker
This commit is contained in:
Tom Lane 2016-03-14 14:22:16 -04:00
parent 3adf9ced17
commit 74a379b984
1 changed files with 1 additions and 1 deletions
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src/backend/executor/spi.c
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@ -1800,7 +1800,7 @@ spi_printtup(TupleTableSlot *slot, DestReceiver *self)
/* Double the size of the pointer array */
tuptable->free = tuptable->alloced;
tuptable->alloced += tuptable->free;
tuptable->vals = (HeapTuple *) repalloc(tuptable->vals,
tuptable->vals = (HeapTuple *) repalloc_huge(tuptable->vals,
tuptable->alloced * sizeof(HeapTuple));
}