From 04910a3ad5cd2901558da2a4fad9a2e2819348aa Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Fri, 3 Dec 2010 22:43:01 -0500 Subject: Put back gistgettuple's check for backwards scan request. On reflection it's a bad idea for the KNNGIST patch to have removed that. We don't want it silently returning incorrect answers. --- src/backend/access/gist/gistget.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src/backend/access/gist/gistget.c') 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); -- cgit v1.2.1