These are messages posted by the PG driver itself, not the application code.
You only see it once because it's being generated when a function body's
being compiled, which happens only once per PG process. You're probably
getting the same recycled handle when you revisit since it's a test machine (I assume) and you're the only visitor (I assume). This is just
an informed guess on my part, i.e. I assume these are coming from code within a PL/pgSQL function.
