Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/9055#discussion_r42581775
--- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveQl.scala ---
@@ -1485,14 +1490,39 @@
https://cwiki.apache.org/confluence/display/Hive/Enhanced+Aggregation%2C+Cube%2C
val BETWEEN = "(?i)BETWEEN".r
val WHEN = "(?i)WHEN".r
val CASE = "(?i)CASE".r
-
- protected def nodeToExpr(node: Node): Expression = node match {
+ val EXISTS = "(?i)EXISTS".r
+
+ protected def nodeToExpr(node: Node, context: Context): Expression =
node match {
--- End diff --
Do we need to pass in `context`? We added `context` to the argument list of
`nodeToPlan` to support creating view. We are not expecting a subqeury expr is
for creating a view, right?
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