Github user wangyum commented on a diff in the pull request:
https://github.com/apache/spark/pull/22066#discussion_r209259163
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/hash.scala
---
@@ -778,21 +783,22 @@ case class HiveHash(children: Seq[Expression])
extends HashExpression[Int] {
input: String,
result: String,
fields: Array[StructField]): String = {
+ val tmpInput = ctx.freshName("input")
--- End diff --
Does Hive have this issue?
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