>> On the other hand, usage of some well-defined statement name to trigger
>> the special case would be fine: all pgbouncer versions would pass those
>> parse/bind/exec message as if it were regular messages.
>
> I do not accept this idea that retroactively defining special semantics
> for certain statement names is not a protocol break. If it causes any
> change in what the server's response would be, then it is a protocol
> break.
+1. It definitely is a protocol break.
Best regards,
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese:http://www.sraoss.co.jp