Github user ninadvps commented on a diff in the pull request: https://github.com/apache/spark/pull/17148#discussion_r104273854 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/statsEstimation/FilterEstimation.scala --- @@ -249,17 +251,19 @@ case class FilterEstimation(plan: Filter, catalystConf: CatalystConf) extends Lo attr: Attribute, literal: Literal, update: Boolean): Option[Double] = { + if (!colStatsMap.contains(attr)) { + logDebug("[CBO] No statistics for " + attr) + return None --- End diff -- why return?
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