// @tags: [ // assumes_balancer_off, // assumes_read_concern_local, // ] let t = db.regex4; t.drop(); assert.commandWorked(t.save({name: "eliot"})); assert.commandWorked(t.save({name: "emily"})); assert.commandWorked(t.save({name: "bob"})); assert.commandWorked(t.save({name: "aaron"})); assert.eq(2, t.find({name: /^e.*/}).count(), "no index count"); assert.eq( 4, t.find({name: /^e.*/}).explain(true).executionStats.totalDocsExamined, "no index explain"); // assert.eq( 2 , t.find( { name : { $ne : /^e.*/ } } ).count() , "no index count ne" ); // // SERVER-251 assert.commandWorked(t.createIndex({name: 1})); assert.eq(2, t.find({name: /^e.*/}).count(), "index count"); assert.eq(2, t.find({name: /^e.*/}).explain(true).executionStats.totalKeysExamined, "index explain"); // SERVER-239 // assert.eq( 2 , t.find( { name : { $ne : /^e.*/ } } ).count() , "index count ne" ); // SERVER-251