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path: root/src/backend/access/gist/gistget.c
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Diffstat (limited to 'src/backend/access/gist/gistget.c')
-rw-r--r--src/backend/access/gist/gistget.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/backend/access/gist/gistget.c b/src/backend/access/gist/gistget.c
index f0418a08af..afff55c788 100644
--- a/src/backend/access/gist/gistget.c
+++ b/src/backend/access/gist/gistget.c
@@ -459,8 +459,12 @@ Datum
gistgettuple(PG_FUNCTION_ARGS)
{
IndexScanDesc scan = (IndexScanDesc) PG_GETARG_POINTER(0);
+ ScanDirection dir = (ScanDirection) PG_GETARG_INT32(1);
GISTScanOpaque so = (GISTScanOpaque) scan->opaque;
+ if (dir != ForwardScanDirection)
+ elog(ERROR, "GiST only supports forward scan direction");
+
if (!so->qual_ok)
PG_RETURN_BOOL(false);