SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function sparkbar (children 2)
     ExpressionList (children 2)
      Identifier event_date
      Identifier cnt
     ExpressionList (children 1)
      Literal UInt64_9
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 2)
           Function sum (alias cnt) (children 1)
            ExpressionList (children 1)
             Identifier value
           Identifier event_date
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier spark_bar_test
          ExpressionList (children 1)
           Identifier event_date
