Hi all!
Currently, only unnamed prepared statements are supported by psql with the
\bind command and it's not possible to create or use named prepared statements
through extended protocol.
This patch introduces 2 additional commands: \parse and \bindx.
\parse allows us to issue a Parse message to create a named prepared statement
through extended protocol.
\bindx allows to bind and execute a named prepared statement through extended
protocol.
The main goal is to provide more ways to test extended protocol in
regression tests
similarly to what \bind is doing.
Regards,
Anthonin
