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A comment on MySQL 8.0 is now generally available. Parent comment

Re:MySQL 8.0 is now generally available by gtowey on Thursday April 19, 2018 @06:36PM (#16880780)
This covers probably the most important reasons to use MySQL over PostgreSQL:

https://eng.uber.com/mysql-migration/

The TL;DR is that PostgreSQL on-disk storage format leads to much higher IOPs for the same workload. For companies running OLTP at scale, the cost differences can be huge.

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Re:MySQL 8.0 is now generally available by PeterMikhailov on Thursday April 19, 2018 @11:32PM (#16881977)
I've been to a few talks from the PostgreSQL lead developers where they mention this.

Their opinion was mostly "Uber could have just asked us the right way to do it" and "We believe Uber's new engineering leader needed something to do"

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