maropu commented on a change in pull request #22038: [SPARK-25056][SQL] Unify
the InConversion and BinaryComparison behavior
URL: https://github.com/apache/spark/pull/22038#discussion_r364527738
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/TypeCoercion.scala
##########
@@ -495,9 +495,13 @@ object TypeCoercion {
i
}
- case i @ In(a, b) if b.exists(_.dataType != a.dataType) =>
- findWiderCommonType(i.children.map(_.dataType)) match {
- case Some(finalDataType) => i.withNewChildren(i.children.map(Cast(_,
finalDataType)))
+ case i @ In(value, list) if list.exists(_.dataType != value.dataType) =>
+ findWiderCommonType(list.map(_.dataType)) match {
+ case Some(listType) =>
+ val finalDataType =
findCommonTypeForBinaryComparison(value.dataType, listType, conf)
Review comment:
Can you leave some comments about [the discussion
above](https://github.com/apache/spark/pull/22038/files#r346201514)?
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