6 ms·

have worked on 20TB+ tables before. proper schema / index / query, shit is still fast as hell when you do it right

• mh- 3y ago
  Yep, was just sharing this experience in the comments as well. By far the most painful part is schema migrations, and that's well-solved with pt-osc or gh-osc.
  • duskwuff 3y ago
    With MySQL 8.0+, you might not even need pt-osc. A lot of schema changes can be performed online now. https://dev.mysql.com/doc/refman/8.0/en/innodb-online-ddl-operations.html https://dev.mysql.com/doc/refman/8.0/en/innodb-online-ddl-op...
    • SteveNuts 3y ago
      And still my coworkers who 20 years ago were burned by some MySQL minor issue will laugh at the mere suggestion that we could probably use MySQL. People still think it's a toy to this day and they've struggled to shake that perception.