On Sat, 2025-01-25 at 14:55 +0000, Edson Richter wrote: > -Connections are established using the jdbc "readonly" attribute. > > Does PostgreSQL perform any optimization on queries in this scenario to avoid > establishing locks? Or are these queries treated like any other? The only difference that I am aware of is that read-only transactions at the SERIALIZABLE isolation level can release predicate locks earlier, which can benefit performance. But I don't think that you need to worry: reading transactions only take an ACCESS SHARE lock on tables, which won't conflict with data modifications. Yours, Laurenz Albe
