PFC wrote:
> Let's try this quick & dirty implementation of a local
> count-delta cache
> using a local in-memory hashtable (ie. {}).
> CREATE OR REPLACE FUNCTION update_count( key TEXT, delta INTEGER )
> RETURNS INTEGER
> AS $$
> if key in GD:
> GD[key] += delta
> else:
> GD[key] = delta
> return GD[key]
> $$ LANGUAGE plpythonu;
Thanks for the code, this seems to be very much what I was looking for.
I don't know plpythonu (nor python), just read a few docs now:
"The global dictionary SD is available to store data between function calls. This variable is private static data. The
globaldictionary GD is public data, available to all Python functions within a session. Use with care."
Does session == transaction or connection?
I don't understand the difference between SD and GD, private and public. Where are the context boundaries?
Regards,
Stephen Denne.
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