The explain tells that the query is awful (it doesn't use a single key) but I'm using LIMIT 1. Is th
- by Ricardo
The explain command with the query:
explain SELECT * FROM leituras
WHERE categorias_id=75 AND
textos_id=190304 AND
cookie='3f203349ce5ad3c67770ebc882927646' AND
endereco_ip='127.0.0.1'
LIMIT 1
The result:
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE leituras ALL (null) (null) (null) (null) 1022597 Using where
Will it make any difference adding some keys on the table? Even that the query will always return only one row.
