SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 5)
    Identifier d
    Identifier k
    Identifier m.k1
    Identifier m.k2ID
    Identifier m.s
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier summing_composite_key
    TablesInSelectQueryElement (children 1)
     ArrayJoin (children 1)
      ExpressionList (children 1)
       Identifier FirstMap (alias m)
   ExpressionList (children 9)
    OrderByElement (children 1)
     Identifier d
    OrderByElement (children 1)
     Identifier k
    OrderByElement (children 1)
     Identifier m.k1
    OrderByElement (children 1)
     Identifier m.k2ID
    OrderByElement (children 1)
     Identifier m.s
    OrderByElement (children 1)
     Identifier SecondMap.k1ID
    OrderByElement (children 1)
     Identifier SecondMap.k2Key
    OrderByElement (children 1)
     Identifier SecondMap.k3Type
    OrderByElement (children 1)
     Identifier SecondMap.s