Re: someone working to add merge?

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Jaime Casanova <systemguards(at)gmail(dot)com>
Cc: Josh Berkus <josh(at)agliodbs(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: someone working to add merge?
Date: 2005-11-11 17:26:54
Message-ID: 4374D45E.6020809@dunslane.net
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Jaime Casanova wrote:

>>Funny, we were just discussing this at OpenDBCon. Seems that you can't do a
>>full implementation of MERGE without Predicate Locking (the ability to say
>>"lock this table against inserts or updates of any row with key=5").
>>
>>
>
>it isn't what select for update does?
>
>
>
>
>

It won't prevent the insertion of a row with the given predicate.

cheers

andrew

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