SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Function count (children 1)
       ExpressionList
      Literal UInt64_0
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Function CAST (alias a) (children 1)
            ExpressionList (children 2)
             Literal \'33.3\'
             Literal \'Decimal(9, 1)\'
          Function in (children 1)
           ExpressionList (children 2)
            Identifier a
            Function CAST (children 1)
             ExpressionList (children 2)
              Literal \'33.33\'
              Literal \'Decimal(9, 2)\'
