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concatenating hstores in a group by? - Mailing list pgsql-general

From Brent Wood
Subject concatenating hstores in a group by?
Date
Msg-id SY7P300MB0761A579730344B2813CA07DA11B2@SY7P300MB0761.AUSP300.PROD.OUTLOOK.COM
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In response to Re: pgvector extension error  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses concatenating hstores in a group by?
Re: concatenating hstores in a group by?
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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
Connect with NIWA: niwa.co.nz Facebook LinkedIn Twitter Instagram YouTube
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