Fixed two parser bugs.

diff --git a/src/interfaces/ecpg/preproc/preproc.y b/src/interfaces/ecpg/preproc/preproc.y
index d70e4118a0ed7f19f4a9ca97a3d7bed22fc19bb1..d3d0d691261ce4cf46b16abd33cbcdbc0f718e88 100644 (file)
--- a/src/interfaces/ecpg/preproc/preproc.y
+++ b/src/interfaces/ecpg/preproc/preproc.y
@@ -1905,6 +1905,10 @@ ConstraintAttributeSpec: ConstraintDeferrabilitySpec     { $$ = $1; }
 
                        $$ = cat2_str($1, $2);
                }
+               | /* EMPTY */
+               {
+                       $$ = EMPTY;
+               }
                ;
 
 ConstraintDeferrabilitySpec: NOT DEFERRABLE
@@ -3140,7 +3144,7 @@ DeleteStmt:  DELETE_P FROM relation_expr_opt_alias using_clause where_clause ret
                        { $$ = cat_str(5, make_str("delete from"), $3, $4, $5, $6); }
                ;
 
-using_clause: USING from_list  { cat2_str(make_str("using"), $2); }
+using_clause: USING from_list  { $$ = cat2_str(make_str("using"), $2); }
                        | /* EMPTY */           { $$ = EMPTY; }
                ;