cloud-fan commented on a change in pull request #24735: [SPARK-27871][SQL]
LambdaVariable should use per-query unique IDs instead of globally unique IDs
URL: https://github.com/apache/spark/pull/24735#discussion_r288819437
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/objects/objects.scala
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@@ -575,15 +575,43 @@ case class WrapOption(child: Expression, optType:
DataType)
}
}
+object LambdaVariable {
+ private val curId = new java.util.concurrent.atomic.AtomicLong()
+
+ // Returns the codegen-ed `LambdaVariable` and add it to mutable states, so
that it can be
Review comment:
Note that this just moves code around: we already blindly put
`LambdaVariable` to the mutable states. I agree that there is room to optimize
this part, we can do it in followups.
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