Fixed CORE-1146 : AV in rse\invalidate_child_rpbs for recursive queies

FirebirdSQL · Mar 1, 2007 · af5ef6a · af5ef6a
1 parent ed29b6f
commit af5ef6a
Showing 1 changed file with 5 additions and 5 deletions.
diff --git a/src/jrd/rse.cpp b/src/jrd/rse.cpp
@@ -2629,11 +2629,11 @@ static void invalidate_child_rpbs(thread_db* tdbb, RecordSource* rsb)
 
 			case rsb_recurse:
 				{
-					const USHORT streams = (USHORT)(U_IPTR) rsb->rsb_arg[rsb->rsb_count];
-					RecordSource** ptr = rsb->rsb_arg;
-
-					for (const RecordSource* const* end = ptr + streams; ptr < end; ptr += 2) 
-						invalidate_child_rpbs(tdbb, *ptr);
+					// hvlad: recursive CTE is always a 'union all' of 
+					// exactly two members. 
+					// see also comments for RSBRecurse::open
+					invalidate_child_rpbs(tdbb, rsb->rsb_arg[0]);
+					invalidate_child_rpbs(tdbb, rsb->rsb_arg[2]);
 				}
 				return;