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-rw-r--r--src/backend/optimizer/path/indxpath.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/src/backend/optimizer/path/indxpath.c b/src/backend/optimizer/path/indxpath.c
index 3a30a8a7fdc..3722688a21b 100644
--- a/src/backend/optimizer/path/indxpath.c
+++ b/src/backend/optimizer/path/indxpath.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.18 1998/07/27 19:37:58 vadim Exp $
+ * $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.19 1998/07/31 15:10:40 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@@ -405,10 +405,10 @@ group_clauses_by_indexkey(RelOptInfo *rel,
int curIndxKey;
Oid curClass;
- if (clauseinfo_list == NIL)
+ if (clauseinfo_list == NIL || indexkeys[0] == 0)
return NIL;
- while (!DoneMatchingIndexKeys(indexkeys, index))
+ do
{
List *tempgroup = NIL;
@@ -438,7 +438,7 @@ group_clauses_by_indexkey(RelOptInfo *rel,
indexkeys++;
classes++;
- }
+ } while (!DoneMatchingIndexKeys(indexkeys, index));
/* clausegroup holds all matched clauses ordered by indexkeys */
@@ -469,10 +469,10 @@ group_clauses_by_ikey_for_joins(RelOptInfo *rel,
Oid curClass;
bool jfound = false;
- if (join_cinfo_list == NIL)
+ if (join_cinfo_list == NIL || indexkeys[0] == 0)
return NIL;
- while (!DoneMatchingIndexKeys(indexkeys, index))
+ do
{
List *tempgroup = NIL;
@@ -518,7 +518,7 @@ group_clauses_by_ikey_for_joins(RelOptInfo *rel,
indexkeys++;
classes++;
- }
+ } while (!DoneMatchingIndexKeys(indexkeys, index));
/* clausegroup holds all matched clauses ordered by indexkeys */