Have a look at the "hstore" functions in Postgres. Or maybe use the "json" facilities in Postgres. Both approaches migth fit your needs
Regards Bo Victor Thomsen AestasGIS Denmark 2015-12-01 21:02 GMT+01:00 Terry <terry.cur...@shaw.ca>: > > We have been investigating how to get our marine data into and out of our > PostGIS > - GeoServer - GeoNetwork on a CentOS system, and we are looking for some > advice. > > We often have the situation of marine data obtained from a sonde lowered > vertically through the water column. > The resulting data consists of a lat-long location, datetime, and sensors > typically measuring water temperature, > conductivity, dissolved oxygen and chlorophyll fluorescence as a function > of pressure. > > We have typically created CSV files and entered them into PostGIS. We > create a spatial index based upon the > 2D lat-long position. This approach does not seem to maximally use the > "relatedness" of the cast information. > > We are considering creating for each horizontal location and datetime a > series of linestrings of (pressure, parameter) tuples, > and then reading these into PostGIS. The resulting table records could > then be up to a thousand times shorter, and searches potentially faster. > This may imply that we need to write an application to form these > linestrings, and another to create SQL commands. > > Alternatively, we are looking for a nice way to create NetCDF data from > our profile data, and then input that into PostGIS. > > Any suggestions on contemplated approaches, or advice or links to prior > technology for a similar situation? > > -- terry > _______________________________________________ > postgis-users mailing list > postgis-users@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/postgis-users -- Med venlig hilsen Bo Victor Thomsen
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