Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/11396#discussion_r54271842
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala
---
@@ -25,6 +25,7 @@ import org.apache.spark.sql.catalyst.expressions.codegen._
import org.apache.spark.sql.catalyst.util.ArrayData
import org.apache.spark.sql.types._
import org.apache.spark.unsafe.types.{ByteArray, UTF8String}
+import java.text.DecimalFormatSymbols
--- End diff --
Nit: this import should be grouped with the other `java.text` import.
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