Hi, On 2021-06-17 16:37:51 -0700, Jeff Davis wrote: > In theory, it could break a client that issues Parse+Bind+Execute for a > CopyIn/CopyBoth command without a Sync, but I'm not sure there are any > clients that do that, and it's arguable whether the documentation > permitted that or not anyway.
I'm worried about that breaking things and us only noticing down the road. This doesn't fix a problem that we are actively hitting, and as you say it's arguably compliant to do it differently. Potential protocol incompatibilities are a dangerous area. I think before doing something like this we ought to at least verify that the most popular native drivers won't have a problem with the change. Maybe pgjdbc, npgsql, the popular go ones and rust-postgres? Greetings, Andres Freund