SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function COUNT (children 1)
     ExpressionList (children 1)
      Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier mt_with_pk
   Function greater (children 1)
    ExpressionList (children 2)
     Function plus (children 1)
      ExpressionList (children 2)
       Identifier z
       Identifier w
     Literal UInt64_5000