Re: More thoughts about FE/BE protocol

From: Hannu Krosing <hannu(at)tm(dot)ee>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Peter Galbavy <peter(dot)galbavy(at)knowtion(dot)net>, pgsql-hackers(at)postgreSQL(dot)org, pgsql-interfaces(at)postgreSQL(dot)org
Subject: Re: More thoughts about FE/BE protocol
Date: 2003-04-10 16:55:18
Message-ID: 1049993718.1886.27.camel@fuji.krosing.net
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Hannu Krosing kirjutas N, 10.04.2003 kell 19:50:

> I would propose something like X11 protocol (from memory)
>
> each request (query) has a serial number.
>
> eash response is sent in resonable sized chunks, and each chunk has a
> serial number of request, chunk number of response and an indicator for
> EndOfResponse (or perhaps to for Completed or Aborted).

They should both have size as well, as Tom suggested.

> This would make resyncing easier as you can safely ignore responsed you
> dont wan't to see anymore even if for some reasons some of them are
> still in pipeline.
>
> What could be useful (and is often requested) is sending the number of
> records in response *if it is known without extra work*.
>
> Also there should be a way to tell the backend not to send some types of
> notices/warnings.

-----------------
Hannu

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