Re: cursors with prepared statements

From: Bryn Llewellyn <bryn(at)yugabyte(dot)com>
To: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
Cc: pgsql-general list <pgsql-general(at)lists(dot)postgresql(dot)org>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>
Subject: Re: cursors with prepared statements
Date: 2023-04-15 22:37:24
Message-ID: C08CD8DD-1B09-433D-A90C-32F4A09615C3@yugabyte.com
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> david(dot)g(dot)johnston(at)gmail(dot)com wrote:
>
>> bryn(at)yugabyte(dot)com wrote:
>>
>> I found this email from Peter Eisentraut:
>> https://www.postgresql.org/message-id/762cc764-74f0-13fb-77ed-16f91c90f40d%402ndquadrant.com
>>
>> It caused the 42601 error, « syntax error at or near “execute” ». So it looks like Peter’s patch hasn’t yet been adopted. What is the likelihood that it will be adopted in a future version?
>
> Closer to zero than one I'd say, given how that thread ended and not subsequent activity on the feature in the five years since.

Thanks. Shall I assume, too, that there’s no under-the-hood functionality for cursors, analogous to what happens with a PL/pgSQL program at run-time, that does the moral equivalent of on-demand prepare for a cursor’s defining subquery?

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