June 19, 2013

Post: Using index for ORDER BY vs restricting number of rows.

…of fields which sorting can be performed on such as seller, price, date added etc. …id=5 and seller_id=1 order by price desc limit 10 \G *************************** 1. row ***************************… interesting technique is to use sphinx search to accelerate sorting and retrieval which I should …

Post: What would make MySQL Multiple Queries Usable ?

…as same set grouped by site (to show sites with most matches) as well to group by date to show …the stream from that result set. We however use Sphinx for this kind of job on BoardReader and …clicks from AdSense) and when get the grouped and sorted result set – for example pages with most clicks …

Post: How Percona does a MySQL Performance Audit

… with these commands: date uname -a cat …go through it line by line, like this: +———————————–+———————-+———————-+ | Variable_name | Value | Value… log shows all sorts of interesting things. … the customer to evaluate Sphinx, or something like that.)…

Comment: Full text search for all MySQL Storage Engines

…critical to keep the index 100% up-to-date, it’s better to cron it and rebuild…be achieved by using BOOLEAN queries to restrict, and expressions to sort. AFAIK, natural FTS can’t sort until all results are returned anyway. I have reasonable success with MySQL 5.1 and 100k+ product rows. Sphinx