Re: Implementing Frontend/Backend Protocol TCP/IP

From: "Albe Laurenz" <laurenz(dot)albe(at)wien(dot)gv(dot)at>
To: "John R Pierce *EXTERN*" <pierce(at)hogranch(dot)com>, "Alvaro Herrera" <alvherre(at)commandprompt(dot)com>
Cc: "Raimon Fernandez" <coder(at)montx(dot)com>, <pgsql-general(at)postgresql(dot)org>
Subject: Re: Implementing Frontend/Backend Protocol TCP/IP
Date: 2009-10-27 08:55:13
Message-ID: D960CB61B694CF459DCFB4B0128514C203937FD2@exadv11.host.magwien.gv.at
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John R Pierce wrote:
> yah, seriously. the binary protocol is not considered stable, it can
> change in subtle ways in each version. libpq handles the current
> version and all previous versions, and exposes all methods.

That's probably not the problem in the original message, but there
are things you can do with the frontend/backend protocol that libpq
does not expose: for example, with the extended query protocol you can
send a "Bind" call that requests that some of the results should be
returned in text format, others in binary.

Yours,
Laurenz Albe

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