Folks:
SELECT device_id, count(*)::INT as present, count(*)::INT FILTER (WHERE valid) as valid_count,
mode()::INT WITHIN GROUP (order by val) as mode, percentile_disc(0.5)::INT WITHIN GROUP (order by val)
asmedian FROM dataflow_0913 GROUP BY device_id ORDER BY device_id;
ERROR: syntax error at or near "FILTER" LINE 4: count(*)::INT FILTER (WHERE valid) as
valid_count,
The error is right, that's invalid syntax. I can't insert a ::INT
between the aggregate() and FILTER. However, the error message is also
rather confusing to the user; they're likely to look for their mistake
in the wrong place. The same goes for WITHIN GROUP (and OVER, too, I
think).
Is there some kind of possible HINT we could add to make this easier to
debug?
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com
