report errors on where clauses in optional match queries.

vesoft-inc · Jan 17, 2023 · 8993ce2 · 8993ce2
1 parent f3b1ed6
commit 8993ce2
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/parser/parser.yy b/src/parser/parser.yy
@@ -1682,7 +1682,11 @@ match_clause
         $$ = new MatchClause($2, $3, false/*optional*/);
     }
     | KW_OPTIONAL KW_MATCH match_path_list where_clause {
-        $$ = new MatchClause($3, $4, true);
+        if ($4 != nullptr) {
+            throw nebula::GraphParser::syntax_error(@4, "Where clause in optional match is not supported.");
+        } else {
+            $$ = new MatchClause($3, nullptr, true);
+        }
     }
     ;