From: | Craig Ringer <craig(at)2ndquadrant(dot)com> |
---|---|
To: | Yury Zhuravlev <u(dot)zhuravlev(at)postgrespro(dot)ru> |
Cc: | Fabrízio de Royes Mello <fabriziomello(at)gmail(dot)com>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: NOT EXIST for PREPARE |
Date: | 2016-03-24 15:04:31 |
Message-ID: | CAMsr+YF7-MN4weqjLUmWksP6DRxpaAMVsDZsfMAeM8WfNoME0g@mail.gmail.com |
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On 24 March 2016 at 20:03, Yury Zhuravlev <u(dot)zhuravlev(at)postgrespro(dot)ru>
wrote:
> I have a big question. What need to do with message protocol?
> If we write name in Parse message we store prepared statement. I see some
> solutions for this problem but all not ideal:
> 1. We can add second char token for parse message. But too serious change.
> 2. We can try add parameter to tail of message. But in tail we have
> variable length array with parameters. 3. Detect prefix of prepared name.
> For example "__". Effects think clear.
>
I really, really doubt you can change this before we do a protocol version
bump. The current protocol is too inflexible and doesn't have any kind of
capabilities negotiation. I don't think any of those options can work.
--
Craig Ringer http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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