Hullo Eoin,
> SELECT DISTINCT ( COUNT( point_geom))
> FROM (SELECT point_geom? FROM locations where point_type = 3) AS foo
> GROUP BY point_geom;
We get around this kind of thing by creating views in the database,
which synthesize the values we want to depict via SLD. Something like
CREATE VIEW TYPE_3_COUNT AS
SELECT DISTINCT ( COUNT( point_geom)) AS count_thingy
FROM (SELECT point_geom? FROM locations where point_type = 3) AS foo
GROUP BY point_geom;
Then you use TYPE_3_COUNT as a datasource, and put the count_thingy
"column" in the OGC filter.
HTH,
rw
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