hi...
> UPDATE member SET votes = `SELECT count(votes) FROM ballot WHERE id = 1`;
> If not, are there truly dynamic SQL-only (i.e. without resorting to external
> functions) ways to achieve this? Am I being obtuse and missing something
> obvious?
i don't know if pl/pgsql fits your definition of an "external function", but...
if not... a simple pl/pgsql function would do this handily...
--
Aaron J. Seigo
Sys Admin