mitkedb commented on code in PR #45216:
URL: https://github.com/apache/spark/pull/45216#discussion_r1499334642
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala:
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@@ -586,9 +584,17 @@ object ContainsExpressionBuilder extends
StringBinaryPredicateExpressionBuilderB
}
case class Contains(left: Expression, right: Expression) extends
StringPredicate {
- override def compare(l: UTF8String, r: UTF8String): Boolean = l.contains(r)
+ override def compare(l: UTF8String, r: UTF8String): Boolean = {
+ val collationID = right.dataType.asInstanceOf[StringType].collationId
Review Comment:
Maybe we can have someone (e.g. @nikolamand-db ) build a java
micro-benchmark in parallel to the UDF impl to assess the performance of the
Java/JITed code, and we make decisions based on that?
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