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From: Daniel Verite <[email protected]>
To: Tim Fors <[email protected]>
Cc: [email protected]
Subject: Re: ECPG support for PQsetChunkedRowsMode()
Date: Wed, 19 Nov 2025 19:44:31 +0100
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAOjiQ0C7g=0jmHQL2EZaGfn3qjJxVW+nO6OX6-me-Sa_f7yt=g@mail.gmail.com>

	Tim Fors wrote:

> The "chunked rows mode" appears to have been added to
> libpq in V17.
> 
> Does ECPG support this mode

No. It's not clear how it would fit. This mode implies the use
of PQsendQuery(), which does not seem to have an equivalent in
ECPG.

>  are there plans to do so in the near future?

Postgres as a project does not have a roadmap, but
what's being worked on at any point in time can
generally be tracked at https://commitfest.postgresql.org


> Also, is there any data available on performance improvements that
> one might see by using this mode?

In [1], the time to retrieve rows by psql was compared between the
the chunked rows mode and the cursor-based implementation, the
latter being what would typically be used by an ECPG app.



[1]: 
https://postgr.es/m/[email protected]


Best regards,
-- 
Daniel Vérité 
https://postgresql.verite.pro/

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