dbatomic commented on code in PR #47146:
URL: https://github.com/apache/spark/pull/47146#discussion_r1670233826


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala:
##########
@@ -121,24 +121,40 @@ class AstBuilder extends DataTypeAstBuilder with 
SQLConfHelper with Logging {
       visit(s).asInstanceOf[CompoundBody]
     }.getOrElse {
       val logicalPlan = visitSingleStatement(ctx.singleStatement())
-      CompoundBody(Seq(SingleStatement(parsedPlan = logicalPlan)))
+      CompoundBody(Seq(SingleStatement(parsedPlan = logicalPlan)),
+        java.util.UUID.randomUUID.toString)
     }
   }
 
   override def visitSingleCompoundStatement(ctx: 
SingleCompoundStatementContext): CompoundBody = {
     visit(ctx.beginEndCompoundBlock()).asInstanceOf[CompoundBody]
   }
 
-  private def visitCompoundBodyImpl(ctx: CompoundBodyContext): CompoundBody = {
+  private def visitCompoundBodyImpl(ctx: CompoundBodyContext, label: String = 
""): CompoundBody = {

Review Comment:
   What is the reason for having default for label as empty string?
   My understanding is that we are always going to provide a value to label 
(UUID if not provided).



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