Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/22975#discussion_r231978242
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/higherOrderFunctions.scala
---
@@ -74,7 +76,7 @@ case class ResolveLambdaVariables(conf: SQLConf) extends
Rule[LogicalPlan] {
private val canonicalizer = {
if (!conf.caseSensitiveAnalysis) {
// scalastyle:off caselocale
- s: String => s.toLowerCase
+ s: String => s.toLowerCase(Locale.ROOT)
--- End diff --
Not sure about this one. It's affecting variable names in a user's SQL?
then it shouldn't change
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