It sounds like the author's conclusion, that he would pick MySQL over Postgres, was heavily influenced by his recent encounter with a Postgres performance cliff

It sounds like the author's conclusion, that he would pick MySQL over Postgres, was heavily influenced by his recent encounter with a Postgres performance cliff where some django ORM code inadvertently uses subtransactions: https://buttondown.email/nelhage/archive/22ab771c-25b4-4cd9-b316-31a86f737acc https://buttondown.email/nelhage/archive/22ab771c-25b4-4cd9-... For that, I would like to counter with the 10+ years old quadratic locking bug that remains unsolved in InnoDB: https://bugs.mysql.com/bug.php?id=53825 https://bugs.mysql.com/bug.php?id=53825