stefankandic commented on code in PR #46083:
URL: https://github.com/apache/spark/pull/46083#discussion_r1568617954
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/util/SchemaUtils.scala:
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@@ -303,4 +303,35 @@ private[spark] object SchemaUtils {
case _ => false
}
}
+
+ /**
+ * Replaces any collated string type with non collated StringType
+ * recursively in the given schema.
+ */
+ def replaceCollatedStringWithStringInSchema(schema: StructType): StructType
= {
+ StructType(schema.map { field =>
+ if (hasNonBinarySortableCollatedString(field.dataType)) {
Review Comment:
i'm not a fan of the name `hasNonBinarySortableCollatedString`, but that
method does what you described.
It will check if a collation `supportsBinaryEquality` => if id == 0
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