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Re: Transaction-based insert w/PHP?

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: David Fetter <david(at)fetter(dot)org>,SF Postgres <sfpug(at)postgresql(dot)org>
Subject: Re: Transaction-based insert w/PHP?
Date: 2003-02-13 00:52:45
Message-ID: (view raw, whole thread or download thread mbox)
Lists: sfpug

> Does fetching that OID inside a transaction automatically guarantee
> that the right thing happens?

Maybe, maybe not.  Regardless, you're making an easy task hard.  You'd be 
better off staying away from OIDs entirely:

> INSERT INTO foo (foo_desc)
> VALUES ('too much unix!')

> -- Fetch the $foo_id, or roll back if unable.

$new_foo = currval('foo_foo_id_seq')

> INSERT INTO bar (bar_desc, foo_id)
> VALUES ('never too much unix!', $new_foo)

I'd suggest reading the docs on sequences.  There is no reason for you ever to 
use OIDs at all.

Josh Berkus
Aglio Database Solutions
San Francisco

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