drop dataverse test if exists;

create dataverse test;

use dataverse test;

create type AddressType as open {
  number: int32, 
  street: string,
  city: string
}

create type CustomerType as closed {
  cid: int32, 
  name: string,
  cashBack: int32,
  age: int32?,
  address: AddressType?,
  lastorder: {
    oid: int32,
    total: float
  }
}

create external dataset Customers(CustomerType)
using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
        
write output to nc1:"rttest/custord_customer_q_03.adm";
      
for $c in dataset('Customers')
let $nestedRec := $c.lastorder
let $c1 := [ $c.cid, $nestedRec.oid]
let $c2 := {{ $c.cid, $nestedRec.oid}}
let $c3 := [ $c.lastorder, $nestedRec]
let $c4 := {{ $c.lastorder, $nestedRec}}
where $c.cid >= int32("3") 
return { "id": $c.cid, "list1":$c1, "list2":$c2,"list3":$c3,"list4":$c4}