[postgis-users] upload a folder of raster files

Giannis Giakoumidakis ggiakoumidakis at yahoo.com
Fri Sep 7 01:43:58 PDT 2012


I firstly try with rid to see if it's working. It gives me an error: 

ERROR:  syntax error at or near "("
LINE 19: ...  FROM ' || quote_ident(public) || '.' quote_ident(cc_all ) ...
                                                                                               ^

See anything wrong here??


-----------------------------------------------------------------------
-- SplitTable
-- Split a table into a series of tables which names are composed of the 
-- concatenation of a prefix and the value of a column.
--
-- sourcetablename   - Name of the table to split into multiple table
-- targettableschema - Name of the schema in which to create the new set
--                     of table
-- targettableprefix - Prefix of the set of table names to create.
-- suffixcolumnname  - Name of the column providing the suffix to each name.
-----------------------------------------------------------------------
CREATE OR REPLACE FUNCTION SplitTable(cc_all text, public text, cc_ text, rid text)
RETURNS int AS
$BODY$
DECLARE
    newtablename text;
    uniqueid RECORD;
BEGIN
    FOR uniqueid IN EXECUTE 'SELECT DISTINCT ' || quote_ident(rid) || '::text AS xyz123  FROM ' || quote_ident(public) || '.' quote_ident(cc_all) LOOP
        newtablename := cc_ || uniqueid.xyz123;
    EXECUTE 'CREATE TABLE ' || quote_ident(public) || '.' || quote_ident(newtablename) || ' AS SELECT * FROM ' || cc_all || ' WHERE ' || rid || '::text = ' || quote_literal(uniqueid.xyz123);
    END LOOP;
    RETURN 1;
END;
$BODY$
LANGUAGE plpgsql VOLATILE STRICT;





________________________________
 From: Pierre Racine <Pierre.Racine at sbf.ulaval.ca>
To: Giannis Giakoumidakis <ggiakoumidakis at yahoo.com>; PostGIS Users Discussion <postgis-users at postgis.refractions.net> 
Sent: Thursday, September 6, 2012 5:34 PM
Subject: RE: [postgis-users] upload a folder of raster files
 
Then I would suggest you use the SQL method: 

-Create a new table creating a unique numeric id per filename (use generate_series()),

-Join this table to the raster table so you get one numeric id per filename and 

-Use this field when you call SplitTable().

Pierre

> -----Original Message-----
> From: Giannis Giakoumidakis [mailto:ggiakoumidakis at yahoo.com]
> Sent: Thursday, September 06, 2012 10:28 AM
> To: Pierre Racine; PostGIS Users Discussion
> Subject: Re: [postgis-users] upload a folder of raster files
> 
> Anyhow, it's not so important this for me.
> 
> 
> 
> The best would be something that reminds the names of the files but it's ok if it
> is as simple as  cc001, cc002, cc003, ... etc  or  whatever it starts from cc that is
> common to all the filenames and then a row of numbers.
> 
> 
> 
> 
> 
> ________________________________
> 
> From: Pierre Racine <Pierre.Racine at sbf.ulaval.ca>
> To: Giannis Giakoumidakis <ggiakoumidakis at yahoo.com>; PostGIS Users
> Discussion <postgis-users at postgis.refractions.net>
> Sent: Thursday, September 6, 2012 5:03 PM
> Subject: RE: [postgis-users] upload a folder of raster files
> 
> 
> How do you want your tables names to be created from those filenames?
> 
> > -----Original Message-----
> > From: Giannis Giakoumidakis [mailto:ggiakoumidakis at yahoo.com]
> > Sent: Thursday, September 06, 2012 5:19 AM
> > To: Pierre Racine; PostGIS Users Discussion
> > Subject: Re: [postgis-users] upload a folder of raster files
> >
> > Thank you very much!
> >
> > I need some extra help with the table name generator
> > (public.dem_x_!_rid:~4,2!), I can't understand how it works.
> >
> > Note that my filenames have that form: cc00h00m15s, cc00h00m30s,
> > cc00h00m45s, cc00h01m00s, ... , cc02h00m00s (hours, minutes, seconds that
> > rising every 15 seconds)
> >
> >
> >
> >
> >
> >
> > ________________________________
> >
> > From: Pierre Racine <Pierre.Racine at sbf.ulaval.ca>
> > To: Giannis Giakoumidakis <ggiakoumidakis at yahoo.com>; PostGIS Users
> > Discussion <postgis-users at postgis.refractions.net>
> > Sent: Wednesday, September 5, 2012 9:07 PM
> > Subject: RE: [postgis-users] upload a folder of raster files
> >
> >
> > Here is my answer to that:
> >
> > http://geospatialelucubrations.blogspot.ca/2012/09/loading-many-rasters-
> into-
> > separate.html
> >
> > Pierre
> >
> > > -----Original Message-----
> > > From: postgis-users-bounces at postgis.refractions.net [mailto:postgis-users-
> > > bounces at postgis.refractions.net] On Behalf Of Giannis Giakoumidakis
> > > Sent: Monday, September 03, 2012 6:12 AM
> > > To: PostGIS Users Discussion
> > > Subject: [postgis-users] upload a folder of raster files
> > >
> > > I want to upload to a db a big number of raster files, pe 500, inside a folder,
> > > named in a row (file_1 to file_500), each one to a different table. Any ideas?
> A
> > > loop or something of the basic: raster2pgsql -s 4236 -I -C -M file_1.tif -F -t
> > > public.demelevation | psql -d gisdb
> > >
> > > Note that using wildcard (*.tif) doesn't help, I tried but it uploads all files in
> one
> > > table as different rows.
> > >
> > > My sql knowledge is bad, so any help would be precious. Thanks.
> >
> >
> >
> 
> 
> 
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