Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/1440#discussion_r15020827
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/columnar/ColumnStats.scala ---
@@ -344,21 +344,52 @@ private[sql] class StringColumnStats extends
BasicColumnStats(STRING) {
}
override def contains(row: Row, ordinal: Int) = {
- !(upperBound eq null) && {
+ (upperBound ne null) && {
--- End diff --
Oh, I see... I forgot that `ne`/`eq` do reference equality... in the case
of null I would imagine there is no difference, but this is probably fine then.
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