王若楠 wrote: > I want to find a way to reduce the lock waiting and improve the > performance. You either have to make the transactions shorter, or you let the different clients modify different rows, so that they don't lock each other. That concurrent writers on the same data lock each other is unavoidable, and all database management systems I know do it the same way. Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com