Github user dongjoon-hyun commented on a diff in the pull request: https://github.com/apache/spark/pull/12646#discussion_r60950643 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala --- @@ -1051,6 +1053,22 @@ class AstBuilder extends SqlBaseBaseVisitor[AnyRef] with Logging { } /** + * Create a name LTRIM for TRIM(Leading), RTRIM for TRIM(Trailing), TRIM for TRIM(BOTH) + */ + private def getTrimFuncName(ctx: FunctionCallContext, optType: Int): String = { + if (ctx.qualifiedName.getText.toLowerCase != "trim") { + throw new ParseException(s"The specified function ${ctx.qualifiedName.getText} " + --- End diff -- Hi, @kevinyu98 . There are two spaces after `${ctx.qualifiedName.getText}`. We had better to reduce that into one space.
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