Github user wzhfy commented on a diff in the pull request:
https://github.com/apache/spark/pull/12646#discussion_r116924800
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
---
@@ -1069,6 +1069,8 @@ class AstBuilder(conf: SQLConf) extends
SqlBaseBaseVisitor[AnyRef] with Logging
override def visitFunctionCall(ctx: FunctionCallContext): Expression =
withOrigin(ctx) {
// Create the function call.
val name = ctx.qualifiedName.getText
+ val trimFuncName = Option(ctx.trimOperator).map {
+ o => visitTrimFuncName(ctx, o)}
--- End diff --
nit:
```
o => visitTrimFuncName(ctx, o)
}
```
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