* David Garamond (lists@zara.6.isreserved.com) wrote: > What do people think of adding some more aggregate functions. These are > the ones that MySQL has and PG doesn't: > > - STD/STDDEV > - VARIANCE > - BIT_OR > - BIT_AND > - GROUP_CONCAT (for strings, added in MySQL 4.x) [...] > Btw, I have written 1 or 2 of the above myself with CREATE AGGREGATE. > But perhaps it would be nice if it's available as a builtin function or > at least present in contrib/. There's an example of GROUP_CONCAT already in the mailing lists but a more obvious place, linked from the documentation, would be really nice. Having the functions included in the main distribution would be nice too, of course. :) I'd be happy to host such a page if necessary but I really think it'd be better on postgresql.org and linked in from the documentation as 'other non-standard/extra functions' or some such. What can we do to make this happen? Stephen
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