Pavel Stehule <pavel.stehule@gmail.com> writes: > 2015-09-26 19:59 GMT+02:00 Tom Lane <tgl@sss.pgh.pa.us>: >> A session-start hook is already possible at the C-code level, using >> session_preload_libraries. It wouldn't be hard to write an extension >> that exposed that in some useful way to SQL code.
> years ago I tried it, if I remember well. I had a problems with SPI calls, > because some caches was not initialized. I am not sure, and I didn't test > last time.
You'd have to start your own transaction if you wanted one, and any uncaught error would effectively be FATAL because it would terminate the session, but otherwise I don't see why that wouldn't work.