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Diffstat (limited to 'src/backend/executor/nodeNestloop.c')
-rw-r--r--src/backend/executor/nodeNestloop.c47
1 files changed, 24 insertions, 23 deletions
diff --git a/src/backend/executor/nodeNestloop.c b/src/backend/executor/nodeNestloop.c
index c6a33228582..27e3582649e 100644
--- a/src/backend/executor/nodeNestloop.c
+++ b/src/backend/executor/nodeNestloop.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/executor/nodeNestloop.c,v 1.47 2008/08/14 18:47:58 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/executor/nodeNestloop.c,v 1.48 2008/08/15 19:20:42 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -226,35 +226,36 @@ ExecNestLoop(NestLoopState *node)
/* In an antijoin, we never return a matched tuple */
if (node->js.jointype == JOIN_ANTI)
+ {
node->nl_NeedNewOuter = true;
- else
+ continue; /* return to top of loop */
+ }
+
+ /*
+ * In a semijoin, we'll consider returning the first match,
+ * but after that we're done with this outer tuple.
+ */
+ if (node->js.jointype == JOIN_SEMI)
+ node->nl_NeedNewOuter = true;
+
+ if (otherqual == NIL || ExecQual(otherqual, econtext, false))
{
/*
- * In a semijoin, we'll consider returning the first match,
- * but after that we're done with this outer tuple.
+ * qualification was satisfied so we project and return the
+ * slot containing the result tuple using ExecProject().
*/
- if (node->js.jointype == JOIN_SEMI)
- node->nl_NeedNewOuter = true;
- if (otherqual == NIL || ExecQual(otherqual, econtext, false))
- {
- /*
- * qualification was satisfied so we project and return
- * the slot containing the result tuple using
- * ExecProject().
- */
- TupleTableSlot *result;
- ExprDoneCond isDone;
+ TupleTableSlot *result;
+ ExprDoneCond isDone;
- ENL1_printf("qualification succeeded, projecting tuple");
+ ENL1_printf("qualification succeeded, projecting tuple");
- result = ExecProject(node->js.ps.ps_ProjInfo, &isDone);
+ result = ExecProject(node->js.ps.ps_ProjInfo, &isDone);
- if (isDone != ExprEndResult)
- {
- node->js.ps.ps_TupFromTlist =
- (isDone == ExprMultipleResult);
- return result;
- }
+ if (isDone != ExprEndResult)
+ {
+ node->js.ps.ps_TupFromTlist =
+ (isDone == ExprMultipleResult);
+ return result;
}
}
}