Github user maropu commented on a diff in the pull request:
https://github.com/apache/spark/pull/22038#discussion_r217603577
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/TypeCoercion.scala
---
@@ -485,8 +494,8 @@ object TypeCoercion {
i
}
- case i @ In(a, b) if b.exists(_.dataType != a.dataType) =>
- findWiderCommonType(i.children.map(_.dataType)) match {
+ case i @ In(value, list) if list.exists(_.dataType !=
value.dataType) =>
+ findInCommonType(value.dataType, list.map(_.dataType), conf) match
{
--- End diff --
If `findInCommonTyp` is used only for this case, can we inline the
`findInCommonType`here?
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