mirror of https://github.com/mongodb/mongo
41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
// @tags: [assumes_balancer_off]
|
|
|
|
t = db.regex3;
|
|
t.drop();
|
|
|
|
t.save({name: "eliot"});
|
|
t.save({name: "emily"});
|
|
t.save({name: "bob"});
|
|
t.save({name: "aaron"});
|
|
|
|
assert.eq(2, t.find({name: /^e.*/}).itcount(), "no index count");
|
|
assert.eq(
|
|
4, t.find({name: /^e.*/}).explain(true).executionStats.totalDocsExamined, "no index explain");
|
|
t.ensureIndex({name: 1});
|
|
assert.eq(2, t.find({name: /^e.*/}).itcount(), "index count");
|
|
assert.eq(2,
|
|
t.find({name: /^e.*/}).explain(true).executionStats.totalKeysExamined,
|
|
"index explain"); // SERVER-239
|
|
|
|
t.drop();
|
|
|
|
t.save({name: "aa"});
|
|
t.save({name: "ab"});
|
|
t.save({name: "ac"});
|
|
t.save({name: "c"});
|
|
|
|
assert.eq(3, t.find({name: /^aa*/}).itcount(), "B ni");
|
|
t.ensureIndex({name: 1});
|
|
assert.eq(3, t.find({name: /^aa*/}).itcount(), "B i 1");
|
|
assert.eq(4, t.find({name: /^aa*/}).explain(true).executionStats.totalKeysExamined, "B i 1 e");
|
|
|
|
assert.eq(2, t.find({name: /^a[ab]/}).itcount(), "B i 2");
|
|
assert.eq(2, t.find({name: /^a[bc]/}).itcount(), "B i 3");
|
|
|
|
t.drop();
|
|
|
|
t.save({name: ""});
|
|
assert.eq(1, t.find({name: /^a?/}).itcount(), "C 1");
|
|
t.ensureIndex({name: 1});
|
|
assert.eq(1, t.find({name: /^a?/}).itcount(), "C 2");
|