Fixed two parser bugs.

diff --git a/src/interfaces/ecpg/preproc/preproc.y b/src/interfaces/ecpg/preproc/preproc.y
index bd5df492fcc9865bbb3fd8cffd7debf5a38fbffd..29c1994cbcace32ff00a2a956becc58b17ed3c96 100644 (file)
--- a/src/interfaces/ecpg/preproc/preproc.y
+++ b/src/interfaces/ecpg/preproc/preproc.y
@@ -1881,6 +1881,10 @@ ConstraintAttributeSpec: ConstraintDeferrabilitySpec     { $$ = $1; }
 
                        $$ = cat2_str($1, $2);
                }
+               | /* EMPTY */
+               {
+                       $$ = EMPTY;
+               }
                ;
 
 ConstraintDeferrabilitySpec: NOT DEFERRABLE
@@ -3037,7 +3041,7 @@ DeleteStmt:  DELETE_P FROM relation_expr using_clause where_clause
                        { $$ = cat_str(4, make_str("delete from"), $3, $4, $5); }
                ;
 
-using_clause: USING from_list  { cat2_str(make_str("using"), $2); }
+using_clause: USING from_list  { $$ = cat2_str(make_str("using"), $2); }
                        | /* EMPTY */           { $$ = EMPTY; }
                ;