Re: Sun acquires MySQL

On Mon, Jan 21, 2008 at 02:47:32AM -0500, Alex Turner wrote:
> My one biggest bone to pick with Postgresql is
> that stored procedures are not compiled.

I'm not going go into this since in my experience they are fast enough
and I don't know enough of your context to decide if the problem has
been correctly diagnosed. plpgsql is not the fastest language supprted
by postgres.

> It makes writing anything but the
> most trivial things in plpgsql stupid because it will slow the crap out of
> your queries. For example: I wrote a simple function to return the distance
> between two lat longs in plpgsql.

Wrong tool for the job? If it's a single statement you should be using
lang 'sql' which would allow it to be inlined in your queries. I've
personally not found plpgsql to be so slow.

In this case, I would simply install postgis and you get all the speed
you need:

# select distance_sphere( makepoint(0,0), makepoint(0,180));
distance_sphere
------------------
20015045.5917028
(1 row)

> Not only did it choke on values that were
> part of a valid domain when calling acos() (I have a list of them someplace
> that I keep meaning to post as it seems like a really bad bug), it was
> slow.

Please report such bugs, since no-one else has seen this problem...

Have a nice day,
--
Martijn van Oosterhout <kleptog(at)svana(dot)org> http://svana.org/kleptog/
> Those who make peaceful revolution impossible will make violent revolution inevitable.
> -- John F Kennedy