Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/20062#discussion_r158717679
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/statsEstimation/FilterEstimation.scala
---
@@ -253,7 +252,7 @@ case class FilterEstimation(plan: Filter) extends
Logging {
1.0 - nullPercent
}
- Some(percent)
+ Some(percent.toDouble)
--- End diff --
The calculation of `percent` should use double too
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