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Re: Documentation of the Front End/Back End Protocol for Large Objects - Mailing list pgsql-general

From Tom Lane
Subject Re: Documentation of the Front End/Back End Protocol for Large Objects
Date
Msg-id 16180.1151078233@sss.pgh.pa.us
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In response to Documentation of the Front End/Back End Protocol for Large Objects  ("Marco Bizzarri" <marco.bizzarri@gmail.com>)
Responses Re: Documentation of the Front End/Back End Protocol for Large Objects  ("Marco Bizzarri" <marco.bizzarri@gmail.com>)
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"Marco Bizzarri" <marco.bizzarri@gmail.com> writes:
> I would like to study the protocol for large object operations
> (lo_read, lo_write,...) between the front-end and back-end.

> I've found this
> http://www.postgresql.org/docs/8.1/static/protocol.html, but it looks
> like it has no message specific for large object...

libpq does it through Function Call messages that invoke lo_open and so
on.  Look into src/interfaces/libpq/fe-lobj.c.

            regards, tom lane

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