[postgis-users] trouble shp2pgsql with numeric

Tonton to.tonton at gmail.com
Tue Nov 22 06:03:59 PST 2011


Yes it's imported at numeric column but 0 becam 0.0000000000 and i just
need to remove all last 0 after the dot
i hope to keep numeric column for these data but with correct decimal ...

T.

On Tue, Nov 22, 2011 at 2:03 PM, Ben Madin
<lists at remoteinformation.com.au>wrote:

> Tonton,
>
> This is a limitation of shapefiles .dbf format. (yet another reason to
> move away from shapefiles). PostGIS can't assume that your value is a
> categorical value (ie a label) when the column only contains numbers and is
> tagged as numeric. To allow for the widest range of cases, it is imported
> probably as float or numeric, so if all your column values are integer you
> could easily (post-import) issue :
>
> ALTER TABLE ltb ALTER COLUMN annoying_column TYPE int USING
> cast(annoying_column as int);
>
> hth.
>
> cheers
>
> Ben
>
> On 22/11/2011, at 5:20 PM, Tonton wrote:
>
> > hello
> >
> > i use shp2pgsql in a web mapping application to add shp file into
> postgis.
> >
> > after uploading on the server side (in django framwork) i use this cmd
> >
> >  cmd = "/usr/bin/shp2pgsql -c -s 4326 -W latin1 -g geometry
> "+/pathToSHPname+" " +str(tablename)+">"+/pathToMyFile.sql"
> >
> > it is working near great now but for some numeric information  in the
> sql request  numbers are transform to sort of float : 2 became 2.0000000000
> >
> > this is an exemple for my generate sql !
> >
> > INSERT INTO "ltb"
> ("coef_conge","depart_lig","fc","freq_moy","freq__0","freq_moy_m","id_aire","id_station","libbelle","libelle","libell_","ligne","mode","num_type","nom_ligne","nom_statio","num_ligne","num_ligne_","sens","tps_parc","terminus_l","tps_parcou","type_acces","v_com_sytr","vitesse","id_lgn","nom_lgn","nom_stt","order","tpsatt_lgn","vit_off_km","vitcom_lgn","vitesse_km","length",geometry)
> VALUES
> ('0.0000000000',NULL,'104','0.0000000000','0','0.0000000000','0','0',NULL,NULL,NULL,NULL,NULL,'0',NULL,NULL,NULL,NULL,NULL,NULL,NULL,'0',NULL,'0.0000000000','0','18226',NULL,NULL,'31','0','0.0000000000','0.0000000000','0.0000000000','222.2906997126','0105000020E6100000010000000102000020E610000009000000E721D9B6305F1340E073BE5D7BF34640319802F44B5F13402462B73D81F34640B40C3CD08B5F1340C2FD98C68BF34640C8A0171BA45F134083D387CD8EF34640DBF078F7D05F13408FF4362192F346404248D110246013400742949695F34640BEA067CCB56013403119CEC098F346407A9371A6FD601340F5DF664A9BF34640EA04C7B160611340602B
>  BB52A1F34640');
> >
> > it is disapointing for me because sometimes the use of these data is for
> label or legend and it is not great to see 2.00000000000 instead of 2 on
> map or in legend part
> >
> > does someone have same trouble or idea to resolv the trouble  ?
> >
> > regards
> >
> > T.
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> > postgis-users at postgis.refractions.net
> > http://postgis.refractions.net/mailman/listinfo/postgis-users
>
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