Re: Concatenate aggregate?

From: "Archibald Zimonyi" <archie@netg.se>

> One way is to create your own aggregate function. See the reference manual
> under CREATE AGGREGATE.

Thank you.

http://www.postgresql.org/idocs/index.php?sql-createaggregate.html

And indeed Chris's LIST() aggregate does almost exactly what I want.  I
don't think it was there last time I tried to figure out CREATE AGGREGATE.
The examples on that page are very helpful.

Julian