concatenating hstores in a group by?

[Brent Wood <Brent.Wood@xxxxxxxxxx>]

Hi,

I have a table with a timestamp and hstore columns with times in milliseconds.

I want to concatenate the hstores, grouped by timestamp, with the timestamps truncated to whole seconds: date_trunc('seconds', timer).

How can I concatenate all the hstores within a one second interval,

 ie, something like:

select timer,

              <hstores concatenated>

from (select  date_trunc('seconds', timer) as timer_sec, hstore)

group by timer;

Thanks

Brent Wood

Principal Technician, Fisheries
NIWA
DDI:  +64 (4) 3860529

Brent Wood
Principal Technician - GIS and Spatial Data Management
Programme Leader - Environmental Information Delivery
+64-4-386-0529

National Institute of Water & Atmospheric Research Ltd (NIWA)
301 Evans Bay Parade Hataitai Wellington New Zealand
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