Re: Limiting number of rows returned at a time in select query - Mailing list pgsql-general

From Rodrigo De León
Subject Re: Limiting number of rows returned at a time in select query
Date
Msg-id 1180051520.672554.25710@m36g2000hse.googlegroups.com
Whole thread Raw
List pgsql-general
Jon Clements ha escrito:
> Hi All.
>
> Is there a way inside a query (or connection) to limit the amount of
> records returned each chunk by the server? At the moment, I have 22
> million records trying to be returned in one-go as the result set. I
> have a .NET driver that has a FetchSize option which allows the above
> (say returning 10k rows at a time without holding them all in memory);
> I'm not sure though if that's a property of the driver / server, as
> none of the other interfaces I have seem to include it. It just makes
> sense it might be server-side; although, if it's not I'm quite happy
> to be corrected.
>
> Any pointers are appreciated.
>
> Cheers,
>
> Jon.

See:

http://www.postgresql.org/docs/8.2/static/queries-limit.html


pgsql-general by date:

Previous
From: Ron Johnson
Date:
Subject: Parallel backups (was Re: why postgresql over other RDBMS)
Next
From: Francisco Reyes
Date:
Subject: Re: Delete with subquery deleting all records