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# test that the query planner chooses a covering index over a non-covering index with the same
# record cost
drop table if exists t2970;
create table t2970 (a int, b int, c int, d int, key(a), key(a,b));
insert into t2970 values (1,1,1,1),(1,2,3,4);
explain select a,count(b),max(b) from t2970 where a > 0 group by a order by a;
alter table t2970 engine=tokudb;
explain select a,count(b),max(b) from t2970 where a > 0 group by a order by a;
drop table t2970;
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