Replies: 3
Rating: 5 stars
Gave us a huge improvement on site with a large postmeta table (more than 33 million rows).
A third party plugin was making 2 multi-join queries with the postmeta table (10 joins on the table). Each query was taking 4-5 minutes to complete.
After indexing those queries dropped to just 0.5 seconds to complete.
Haven’t checked the size increase on the DB, but the speed improvement is fantastic.