On Tue, Apr 23, 2013 at 10:40 PM, Justin Deoliveira <[email protected]>wrote:
> Hi all,
>
> Recently a client of ours forwarded along an initial patch that added
> support for a query hint to do "distinct" queries. In this context
> "distinct" implies the same semantics as the "distinct" keyword as
> supported by most relational databases. The end use case of which is to
> make GeoServer WMS capabilities generation more efficient with regard to
> dimensions, and calculating the distinct values of a time / elevation /
> custom dimension.
>
Wondering, what about the UniqueVisitor, isn't that already running
distinct?
I'd like to understand how what you're proposing is different,
and whether maybe it could be served by another visitor that gets
recognized by the JDBC.
Not that hints is wrong, but I'm wondering if we can get the result with
something that we already have, or with something very similar to what we
already have.
Cheers
Andrea
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