| /* |
| * Description : Equi joins two datasets, Customers and Orders, based on the customer id. |
| * Given the 'indexnl' hint we expect the join to be transformed |
| * into an indexed nested-loop join using Customers' primary index. |
| * Success : Yes |
| */ |
| |
| 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 type OrderType as open { |
| oid: int32, |
| cid: int32, |
| orderstatus: string, |
| orderpriority: string, |
| clerk: string, |
| total: float, |
| items: [int32] |
| } |
| |
| create dataset Customers(CustomerType) partitioned by key cid; |
| create dataset Orders(OrderType) partitioned by key oid; |
| |
| load dataset Customers |
| using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" |
| (("path"="nc1://data/nontagged/customerData.json"),("format"="adm")); |
| |
| load dataset Orders |
| using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" |
| (("path"="nc1://data/nontagged/orderData.json"),("format"="adm")); |
| |
| write output to nc1:"rttest/index-join_btree-primary-equi-join.adm"; |
| |
| for $c in dataset('Customers') |
| for $o in dataset('Orders') |
| where $c.cid /*+ indexnl */ = $o.cid |
| order by $c.cid, $o.oid |
| return {"cid":$c.cid, "oid": $o.oid} |