cloud-fan commented on code in PR #46083:
URL: https://github.com/apache/spark/pull/46083#discussion_r1568600521
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sql/api/src/main/scala/org/apache/spark/sql/types/DataType.scala:
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@@ -454,4 +454,29 @@ object DataType {
case (fromDataType, toDataType) => fromDataType == toDataType
}
}
+
+ /**
+ * Compares two types, ignoring nullability of ArrayType, MapType,
StructType, ignoring case
+ * sensitivity of field names in StructType as well as differences in
collation for String types.
+ */
+ def equalsIgnoreCaseNullabilityAndStringTypes(from: DataType, to: DataType):
Boolean = {
Review Comment:
```suggestion
def equalsIgnoreCaseNullabilityAndCollation(from: DataType, to: DataType):
Boolean = {
```
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