How to optimize this SQL query?
In case you have your own slow SQL query, you can optimize it automatically here.
For the query above, the following recommendations will be helpful as part of the SQL tuning process.
You'll find 3 sections below:
- Description of the steps you can take to speed up the query.
- The optimal indexes for this query, which you can copy and create in your database.
- An automatically re-written query you can copy and execute in your database.
The optimization process and recommendations:
- Remove Redundant Left Joins (modified query below): Redundant LEFT JOINs (e.g. `user_statistics`) were detected in the query. Removing them will result in a performance improvement. In some cases, JOINs become redundant after an optimization is applied, such as when converting OR conditions to a UNION clause.
The optimized query:
SELECT
SQL_NO_CACHE users.id,
users.name
FROM
useres
WHERE
users.is_deleted = 0
GROUP BY
users.id
ORDER BY
users.updated_at LIMIT 50