> hlt=> EXPLAIN SELECT * FROM hltdata ORDER BY stmp, id LIMIT 10; If I remember well, the order of the index attributes must be the same as ... in the query which should use it: try "id, stmp"
> hlt=> EXPLAIN SELECT * FROM hltdata ORDER BY stmp, id LIMIT 10; If I remember well, the order of the index attributes must be the same as ... in the query which should use it: try "id, stmp"