On Thu, Apr 28, 2011 at 6:44 PM, Andrea Aime
<[email protected]> wrote:
> On Thu, Apr 28, 2011 at 6:35 PM, Justin Deoliveira <[email protected]> 
> wrote:
>> Hi all,
>> I wanted to get some feedback on a problem i am trying to solve and a
>> possible solution. First the problem.
>> It comes out of working on the teradata datastore. The td database has a
>> feature called "query banding". It is very simple in nature. It is basically
>> just a statement that sets some key value pairs before another statement is
>> executed, or set some key value pairs for the life of a connection. A common
>> example is to set the name of the application. So one might do:
>> SET QUERY_BAND = 'Application = geotools`;
>> SELECT * FROM ...;

And oh, another thing. That SET will conceivably set the param
for the connection's entire life.
Connections are pooled so... how do you plan to remove those settings
once you're done using them?
If you are using query banding on some data access and none in others,
the others will inherit that set you executed before

Cheers
Andrea

-- 
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Ing. Andrea Aime
GeoSolutions S.A.S.
Tech lead

Via Poggio alle Viti 1187
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Italy

phone: +39 0584 962313
fax:      +39 0584 962313

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