The idea is the following.
Have products and services that pass through different states (order,
committed, reviewed, approved, slope, bill, invoice), these may belong to a
period or many (period = months).
The filter may include the client query or not.
La idea es la siguiente.
Tengo productos y servicio que pasan por distintos estados (pedido,
comprometido,revisado, aprovado, pendiente, a facturar, facturado), estos
pueden pertenecer a un periodo o a muchos (periodo=meses).
El filtro del query puede incluir el cliente o no.
El Miércoles, 3 de febrero, 2016 12:23:31, "Thomas Steinmaurer
[email protected] [firebird-support]" <[email protected]>
escribió:
> I have a state machine (workflow) implemented on a table a couple of
> million records and growing.
> I have crated an index on the "state" field. The possible states are
> very few (5 to 10). Obviously selectivity index is terrible. As I can
> optimize the query?
Hard to say without seeing an actual query ...
Is the state field the only one used to filter the result set?
--
With regards,
Thomas Steinmaurer
http://www.upscene.com/
Professional Tools and Services for Firebird
FB TraceManager, IB LogManager, Database Health Check, Tuning etc.
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