asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-26.aql

/*
 *  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 predicates like $v1 >= v2 and $v3 <= v4.
 *  Expected Result : Success
 *  Date            : 13th Aug 2012
 */

drop dataverse test if exists;
create dataverse test;
use dataverse test;

write output to nc1:"rttest/btree-index_btree-primary-26.adm";

create type TestType as open {
    fname : string,
    lname : string
}

// create internal dataset with primary index defined on fname field
create dataset testdst(TestType) partitioned by key fname;

// 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 >= "Max" and $emp.fname <= "Roger" 
return $emp