maropu commented on a change in pull request #23783: [SPARK-26854][SQL] Support
ANY/SOME subquery
URL: https://github.com/apache/spark/pull/23783#discussion_r258792490
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
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@@ -1055,6 +1055,26 @@ class AstBuilder(conf: SQLConf) extends
SqlBaseBaseVisitor[AnyRef] with Logging
Exists(plan(ctx.query))
}
+ private def getPredicate(
+ operator: ComparisonOperatorContext): (Expression, Expression) =>
Expression = {
+ operator.getChild(0).asInstanceOf[TerminalNode].getSymbol.getType match {
+ case SqlBaseParser.EQ =>
+ (left, right) => EqualTo(left, right)
Review comment:
In that case, how do you handle `Not` in this function?
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