Comment Re:Did they fix perf (Score 1) 146
Subqueries in Mysql is as useful in the real-world deployments as paper and pencil. Actually, at least with p&p, I can doodle some fancy comics.
Subselects is so limited in the indexes it can use the performance as melted has pointed out is bad. To me, it's not bad, it's unusable in just-in-time page generation. Usable for cron jobs and data warehousing but forget about it if you want it "fast".
Subselects is so limited in the indexes it can use the performance as melted has pointed out is bad. To me, it's not bad, it's unusable in just-in-time page generation. Usable for cron jobs and data warehousing but forget about it if you want it "fast".