// Check that v0 keys are generated for v0 indexes SERVER-3375 t = db.jstests_indexw; t.drop(); t.save( {a:[]} ); assert.eq( 1, t.count( {a:[]} ) ); t.ensureIndex( {a:1} ); assert.eq( 1, t.count( {a:[]} ) ); t.dropIndexes(); // The count result is incorrect - just checking here that v0 key generation is used. t.ensureIndex( {a:1}, {v:0} ); assert.eq( 0, t.count( {a:[]} ) );