Re: Selecting a non-locked row.

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: Kurt Roeckx <Q(at)ping(dot)be>, pgsql-sql(at)postgresql(dot)org
Subject: Re: Selecting a non-locked row.
Date: 2003-01-19 21:26:10
Message-ID: 200301191326.10285.josh@agliodbs.com
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Kurt,

> I'm in the process of writing an application, and I'm not sure
> how to properly solve it.
>
> I have a table with records in, and they either still need to be
> processed or not. Several people will be using the table at the
> same time.
>
> I was thinking about using a select .... for update limit 1, but
> the other persons will of course try to select the same record
> and wait until that one is released. The locks are held for a
> long period of time.
>
> Is there a way to select a row that is not locked yet?

I'm a bit confused by your question. Could you try explaining it another way,
possibly with SQL code examples?

--
-Josh Berkus
Aglio Database Solutions
San Francisco

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