31 lines
791 B
JavaScript
31 lines
791 B
JavaScript
var t = db.geo_2d_explain;
|
|
|
|
t.drop();
|
|
|
|
var n = 1000;
|
|
|
|
// insert n documents with integer _id, a can be 1-5, loc is close to [40, 40]
|
|
t.drop()
|
|
t.ensureIndex({loc: "2d", _id: 1})
|
|
|
|
var x = 40;
|
|
var y = 40;
|
|
for (var i = 0; i < n; i++) {
|
|
// random number in range [1, 5]
|
|
var a = Math.floor(Math.random() * 5) + 1;
|
|
var dist = 4.0;
|
|
var dx = (Math.random() - 0.5) * dist;
|
|
var dy = (Math.random() - 0.5) * dist;
|
|
var loc = [x + dx, y + dy];
|
|
t.save({_id: i, a: a, loc: loc});
|
|
}
|
|
|
|
var explain = t.find({loc: {$near: [40, 40]}, _id: {$lt: 50}}).explain("executionStats");
|
|
|
|
print('explain = ' + tojson(explain));
|
|
|
|
var stats = explain.executionStats;
|
|
assert.eq(stats.nReturned, 50);
|
|
assert.lte(stats.nReturned, stats.totalDocsExamined);
|
|
assert.eq(stats.executionSuccess, true);
|