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'use strict';
/**
* distinct_projection.js
*
* Runs distinct, with a projection on an indexed field, and verifies the result.
* The indexed field contains unique values.
* Each thread operates on a separate collection.
*/
load('jstests/concurrency/fsm_libs/extend_workload.js'); // for extendWorkload
load('jstests/concurrency/fsm_workloads/distinct.js'); // for $config
var $config = extendWorkload($config,
function($config, $super) {
$config.data.prefix = 'distinct_projection_fsm';
$config.states.distinct = function distinct(db, collName) {
var query = {
i: {$lt: this.numDocs / 2}
};
assertWhenOwnColl.eq(
this.numDocs / 2,
db[this.threadCollName].distinct('i', query).length);
};
return $config;
});
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