SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 3)
    Function modulo (children 1)
     ExpressionList (children 2)
      Identifier rdb.key
      Literal UInt64_2
    Function sum (children 1)
     ExpressionList (children 1)
      Identifier k
    Function max (children 1)
     ExpressionList (children 1)
      Identifier value2
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t2
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier rdb
     TableJoin (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier rdb.key
        Identifier t2.k
   ExpressionList (children 1)
    Function modulo (children 1)
     ExpressionList (children 2)
      Identifier rdb.key
      Literal UInt64_2