Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/1151#discussion_r14277596
--- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveQl.scala ---
@@ -614,6 +614,8 @@ private[hive] object HiveQl {
queries.reduceLeft(Union)
case Token("TOK_UNION", left :: right :: Nil) =>
Union(nodeToPlan(left), nodeToPlan(right))
+
+ case Token("TOK_EXCEPT", left :: right :: Nil) =>
Subtract(nodeToPlan(left), nodeToPlan(right))
--- End diff --
Does this compile? Isn't the logical node called `Except`? I think maybe
you need to set `SPARK_HIVE=true` so that Hive code is also compiled.
Also, it would be good to add a test case for the hive branch of the code
as well. Perhaps in `HiveQuerySuite`.
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