David Garamond <lists@zara.6.isreserved.com> writes:
> What do people think of adding some more aggregate functions. These are
> the ones that MySQL has and PG doesn't:
> - STD/STDDEV
> - VARIANCE
Have you read the documentation lately?
> - BIT_OR
> - BIT_AND
> - GROUP_CONCAT (for strings, added in MySQL 4.x)
Unless these are doing something I don't see, they should be easily
writable using CREATE AGGREGATE.
regards, tom lane
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