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Re: Bulkloading using COPY - ignore duplicates?

From: "Mikheev, Vadim" <vmikheev(at)SECTORBASE(dot)COM>
To: "'Tom Lane'" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Zeugswetter Andreas SB SD <ZeugswetterA(at)spardat(dot)at>, Lee Kindness <lkindness(at)csl(dot)co(dot)uk>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Bulkloading using COPY - ignore duplicates?
Date: 2001-10-01 21:56:01
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
> > But what about BEFORE insert/update triggers which could
> > insert records too?
> Well, what about them?  It's already possible for a later
> BEFORE trigger to cause the actual insertion to be suppressed,
> so I don't see any difference from what we have now.
> If a BEFORE trigger takes actions on the assumption that the
> insert will happen, it's busted already.

This problem could be solved now by implementing *single* trigger.
In future, we could give users ability to specify trigger
execution order.
But with proposed feature ...

> Mind you, I'm not actually advocating that we do any of this ;-).

I understand -:)

> I was just sketching a possible implementation approach in
> case someone wants to try it.

And I'm just sketching possible problems -:)


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