* Ravi Chemudugunta ([EMAIL PROTECTED]) wrote:
> Which version is faster?

In general I would recommend that you benchmark them using
as-close-to-real load as possible again as-real-as-possible data.

> Does the exception mechanism add any overhead?

Yes, using exceptions adds a fair bit of overhead.  Quote from the
documentation found here:
http://www.postgresql.org/docs/8.3/static/plpgsql-control-structures.html

Tip:  A block containing an EXCEPTION clause is significantly more
expensive to enter and exit than a block without one. Therefore, don't
use EXCEPTION without need.

> Which is more cleaner?

That would be in the eye of the beholder, generally.  Given the lack of
complexity, I don't think 'cleanness' in this case really matters all
that much.

        Enjoy,

                Stephen

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