johnhany97 commented on a change in pull request #26738: [SPARK-30082][SQL] Do
not replace Zeros when replacing NaNs
URL: https://github.com/apache/spark/pull/26738#discussion_r362335250
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/DataFrameNaFunctions.scala
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@@ -456,7 +456,7 @@ final class DataFrameNaFunctions private[sql](df:
DataFrame) {
val keyExpr = df.col(col.name).expr
def buildExpr(v: Any) = Cast(Literal(v), keyExpr.dataType)
val branches = replacementMap.flatMap { case (source, target) =>
- Seq(buildExpr(source), buildExpr(target))
+ Seq(Literal(source), buildExpr(target))
Review comment:
Nice catch there @gatorsmile. I've updated the PR description. Should I also
update the PR title? Let me know if you'd like me to add in more details into
the PR description.
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