Github user adrian-wang commented on a diff in the pull request: https://github.com/apache/spark/pull/1151#discussion_r14060224 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/SqlParser.scala --- @@ -119,6 +119,7 @@ class SqlParser extends StandardTokenParsers with PackratParsers { protected val UNCACHE = Keyword("UNCACHE") protected val UNION = Keyword("UNION") protected val WHERE = Keyword("WHERE") + protected val SUBTRACT = Keyword("SUBTRACT") --- End diff -- I think we'd better use "MINUS" or "EXCEPT" instead of "SUBTRACT"
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