SELECT * FROM `ticket` WHERE `ticket_id` LIKE '%wm%33%' LIMIT 0,1000
the table doesn't have full text index and i'm affraid that giving the column a full text index will cost time when table is needed to be always on
How to optimize this SQL query?
The following recommendations will help you in your 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:
Avoid LIKE Searches With Leading Wildcard (query line: 6): The database will not use an index when using like searches with a leading wildcard (e.g. '%wm%33%'). Although it's not always a satisfactory solution, please consider using prefix-match LIKE patterns (e.g. 'TERM%').
Avoid OFFSET In LIMIT Clause (query line: 6): OFFSET clauses can be very slow when used with high offsets (e.g. with high page numbers when implementing paging). Instead, use the following \u003ca target\u003d"_blank" href\u003d"http://www.eversql.com/faster-pagination-in-mysql-why-order-by-with-limit-and-offset-is-slow/"\u003eseek method\u003c/a\u003e, which provides better and more stable response rates.
Avoid Selecting Unnecessary Columns (query line: 2): Avoid selecting all columns with the '*' wildcard, unless you intend to use them all. Selecting redundant columns may result in unnecessary performance degradation.
The optimized query:
`ticket`.`ticket_id` LIKE '%wm%33%' LIMIT 0, 1000