On 2/06, Richard Huxton wrote:
| You want to use triggers not rules here (see the "server programming" and
| "procedural language" manual sections). A trigger will be fired for each row
| inserted/deleted/updated. Of course this means it will be fired 5000 times
| for 5000 updated rows.
Ouch. At the current time, I reverted to count(*) style which seems to be
performed in much less time in 7.3.2 than in 7.2.x.
I'll look at the triggers, thanks.
Sam