Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/20548#discussion_r167761409
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/types/DataType.scala ---
@@ -298,22 +298,24 @@ object DataType {
* Returns true if the two data types share the same "shape", i.e. the
types (including
* nullability) are the same, but the field names don't need to be the
same.
*/
- def equalsStructurally(from: DataType, to: DataType): Boolean = {
+ def equalsStructurally(from: DataType, to: DataType,
+ ignoreNullability: Boolean = false): Boolean = {
--- End diff --
We can fix it when merging the PR
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