| /* |
| * Description : BTree Index verification (usage) test |
| * : This test is intended to verify that the primary BTree index is used |
| * : in the optimized query plan for the predicates that satisfy BTree index look up rule. |
| * Expected Result : Success |
| * Date : 13th Aug 2012 |
| */ |
| |
| // Negative test - prefix search, BTree index should not be used. |
| |
| drop dataverse test if exists; |
| create dataverse test; |
| use dataverse test; |
| |
| write output to nc1:"rttest/btree-index_btree-primary-03.adm"; |
| |
| create type TestType as open { |
| fname : string, |
| lname : string |
| } |
| |
| // create internal dataset with primary index defined on fname,lname fields |
| create dataset testdst(TestType) partitioned by key fname,lname; |
| |
| // load valid data with fname and lname entries |
| |
| load dataset testdst |
| using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" |
| (("path"="nc1://data/fn-ln.adm"),("format"="delimited-text"),("delimiter"="|")); |
| |
| // Query the data that was loaded above. |
| |
| for $emp in dataset('testdst') |
| where $emp.fname < "Isa" |
| return $emp |