In this episode of Scaling Postgres, we discuss subquery performance, how to avoid excessive locking when doing updates, how to change a columns datatype without excessive locking and lessons from an upgrade outage.

To get the show notes as well as get notified of new episodes, visit: 

https://www.scalingpostgres.com/episodes/274-subquery-performance-avoid-update-locking-column-changes-outage-workshop/