throw error if there are unexpected join clauses.

marmbrus · Jan 11, 2014 · 86355a6 · 86355a6
1 parent c5842d2
commit 86355a6
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/main/scala/catalyst/frontend/Hive.scala b/src/main/scala/catalyst/frontend/Hive.scala
@@ -543,6 +543,7 @@ object HiveQl {
         case "TOK_LEFTOUTERJOIN" => LeftOuter
         case "TOK_FULLOUTERJOIN" => FullOuter
       }
+      assert(other.size <= 1, "Unhandled join clauses.")
       Join(nodeToRelation(relation1),
         nodeToRelation(relation2),
         joinType,