Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/12646#discussion_r114088698
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
---
@@ -1086,10 +1106,22 @@ class AstBuilder extends SqlBaseBaseVisitor[AnyRef]
with Logging {
/**
* Create a function database (optional) and name pair.
*/
- protected def visitFunctionName(ctx: QualifiedNameContext):
FunctionIdentifier = {
+ protected def visitFunctionName(
+ ctx: QualifiedNameContext,
+ trimFuncN: Option[String] = None): FunctionIdentifier = {
ctx.identifier().asScala.map(_.getText) match {
- case Seq(db, fn) => FunctionIdentifier(fn, Option(db))
- case Seq(fn) => FunctionIdentifier(fn, None)
+ case Seq(db, fn) =>
+ if (fn.equalsIgnoreCase("trim") && trimFuncN.isDefined) {
--- End diff --
From `visitTrimFuncName`, `fn` can also be `ltrim` and `rtrim`, but seems
you don't handle them here?
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