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Defend against null scankeys in spgist searches. 

Should've thought of that one earlier.
This commit is contained in:
Tom Lane 2011-12-17 19:08:28 -05:00
parent 5577ca5bfb
commit b7a0e8fb4d
1 changed files with 24 additions and 6 deletions
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30
src/backend/access/spgist/spgscan.c
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@ -162,13 +162,22 @@ spgLeafTest(SpGistScanOpaque so, Datum leafDatum,
oldCtx = MemoryContextSwitchTo(so->tempCxt);
for (i = 0; i < so->numberOfKeys; i++)
{
in.strategy = so->keyData[i].sk_strategy;
in.query = so->keyData[i].sk_argument;
ScanKey skey = &so->keyData[i];
/* Assume SPGiST-indexable operators are strict */
if (skey->sk_flags & SK_ISNULL)
{
result = false;
break;
}
in.strategy = skey->sk_strategy;
in.query = skey->sk_argument;
out.recheck = false;
result = DatumGetBool(FunctionCall2Coll(&so->state.leafConsistentFn,
so->keyData[i].sk_collation,
skey->sk_collation,
PointerGetDatum(&in),
PointerGetDatum(&out)));
*recheck |= out.recheck;
@ -398,13 +407,22 @@ redirect:
for (j = 0; j < so->numberOfKeys; j++)
{
in.strategy = so->keyData[j].sk_strategy;
in.query = so->keyData[j].sk_argument;
ScanKey skey = &so->keyData[j];
/* Assume SPGiST-indexable operators are strict */
if (skey->sk_flags & SK_ISNULL)
{
nMatches = 0;
break;
}
in.strategy = skey->sk_strategy;
in.query = skey->sk_argument;
memset(&out, 0, sizeof(out));
FunctionCall2Coll(&so->state.innerConsistentFn,
so->keyData[j].sk_collation,
skey->sk_collation,
PointerGetDatum(&in),
PointerGetDatum(&out));