Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/8956#discussion_r42176707
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetFilters.scala
---
@@ -48,6 +48,34 @@ private[sql] object ParquetFilters {
override def inverseCanDrop(statistics: Statistics[T]): Boolean = false
}
+ object StringFilter extends Enumeration {
+ type Mode = Value
+ val STARTS_WITH, ENDS_WITH, CONTAINS = Value
+ }
+
+ case class StringFilter(
+ v: java.lang.String,
+ mode: StringFilter.Mode) extends UserDefinedPredicate[Binary] with
Serializable {
--- End diff --
We don't need to extend from `Serializable` explicitly since case classes
are inherently serializable.
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