Files
mongo/jstests/core/orf.js
2016-03-09 12:18:14 -05:00

25 lines
647 B
JavaScript

// Test a query with 200 $or clauses
t = db.jstests_orf;
t.drop();
var a = [];
var expectBounds = [];
for (var i = 0; i < 200; ++i) {
a.push({_id: i});
expectBounds.push([i, i]);
}
a.forEach(function(x) {
t.save(x);
});
// This $or query is answered as an index scan over
// a series of _id index point intervals.
explain = t.find({$or: a}).hint({_id: 1}).explain(true);
printjson(explain);
assert.eq(200, explain.executionStats.nReturned, 'n');
assert.eq(200, explain.executionStats.totalKeysExamined, 'keys examined');
assert.eq(200, explain.executionStats.totalDocsExamined, 'docs examined');
assert.eq(200, t.count({$or: a}));