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From: Christophe Pettus <[email protected]>
To: Denis Laxalde <[email protected]>
Cc: Daniele Varrazzo <[email protected]>
Cc: [email protected]
Subject: Re: about client-side cursors
Date: Thu, 4 Feb 2021 07:17:37 -0800
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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> On Feb 4, 2021, at 07:02, Denis Laxalde <[email protected]> wrote:
> 
> If "cursor" is a real database cursor, I agree.

But it's not just CURSORs that have this behavior.  libpq allows the client to the send the query, and then make separate requests for each row, even without a database cursor; this maps almost exactly to .execute() and .fetchone().  It doesn't seem a good idea to guarantee forever that .execute() will *never* do I/O without a database-side cursor.

Having a single convenience method on the connection object that does the equivalent of a .execute() and a .fetchall() might be useful, though.
--
-- Christophe Pettus
   [email protected]

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