srielau commented on code in PR #42888:
URL: https://github.com/apache/spark/pull/42888#discussion_r1352802027
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala:
##########
@@ -2274,19 +2267,32 @@ class AstBuilder extends DataTypeAstBuilder with
SQLConfHelper with Logging {
val filter = Option(ctx.where).map(expression(_))
val ignoreNulls =
Option(ctx.nullsOption).map(_.getType ==
SqlBaseParser.IGNORE).getOrElse(false)
- val funcCtx = ctx.functionName
- val func = withFuncIdentClause(
- funcCtx,
- ident => UnresolvedFunction(ident, arguments, isDistinct, filter,
ignoreNulls)
- )
- // Check if the function is evaluated in a windowed context.
- ctx.windowSpec match {
- case spec: WindowRefContext =>
- UnresolvedWindowExpression(func, visitWindowRef(spec))
- case spec: WindowDefContext =>
- WindowExpression(func, visitWindowDef(spec))
- case _ => func
+ // Is this an IDENTIFIER clause instead of a function call?
+ if (name.toLowerCase(Locale.ROOT) == "identifier" && // IDENTIFIER (but
not `IDENTIFIER`)
Review Comment:
@cloud-fan This doesn't work. (see commit history for what I tried).
On the bubble I think the current solution is the best.
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