Github user kevinyu98 commented on a diff in the pull request:
https://github.com/apache/spark/pull/12646#discussion_r139278830
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
---
@@ -1179,6 +1179,26 @@ class AstBuilder(conf: SQLConf) extends
SqlBaseBaseVisitor[AnyRef] with Logging
* Create a (windowed) Function expression.
*/
override def visitFunctionCall(ctx: FunctionCallContext): Expression =
withOrigin(ctx) {
+ def replaceFunctions(
+ funcID: FunctionIdentifier,
+ ctx: FunctionCallContext): FunctionIdentifier = {
+ val opt = ctx.trimOption
+ if (opt != null) {
+ if (ctx.qualifiedName.getText.toLowerCase != "trim") {
--- End diff --
I changed to toLowerCase(Locale.ROOT)
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