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 3)
      Literal UInt64_9
      Function toDate (children 1)
       ExpressionList (children 1)
        Literal \'2020-01-01\'
      Function toDate (children 1)
       ExpressionList (children 1)
        Literal \'2020-01-10\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier spark_bar_test