SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Identifier B
    Function neighbor (alias next_B) (children 1)
     ExpressionList (children 2)
      Identifier B
      Literal UInt64_1
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 1)
           Asterisk
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier test
          ExpressionList (children 1)
           OrderByElement (children 1)
            Identifier B
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier A
     Literal UInt64_1