[GRASS-dev] v.in.ogr: cnames vs. columns

Helmut Kudrnovsky hellik at web.de
Mon Aug 21 13:12:36 PDT 2017


Veronica Andreo wrote
> Hi Helli,
> 
> Using the history link at the end of the manual, I found:
> 
> https://trac.osgeo.org/grass/changeset/63602/grass/trunk/vector/v.in.ogr
> 
> cnames was renamed to columns in 63602... could you please edit the
> manual?
> I'm on phone.
> 
> Cheers,
> Vero
> 
> 
> El 21 ago. 2017 6:54 p.m., "Helmut Kudrnovsky" <

> hellik@

> > escribió:
> 
> hi,
> 
> just found it in the manual:
> 
> https://grass.osgeo.org/grass73/manuals/v.in.ogr.html
> 
> in the command itself it's "columns"
> 
> v.in.ogr [-flc2tojrewi] input=string [layer=string[,string,...]]
> [output=name] [spatial=xmin,ymin,xmax,ymax[,xmin,ymin,xmax,ymax,...]]
> [where=sql_query] [min_area=float] [type=string[,string,...]] [snap=float]
> [location=name] [columns=name[,name,...]] [encoding=string] [key=string]
> [geometry=name] [--overwrite] [--help] [--verbose] [--quiet] [--ui]
> 
> in the rest of the manual "cnames"
> 
>  "v.in.ogr converts '.', '-' and '#' to '_' (underscore) during import.
> The
> -w flag changes capital column names to lowercase characters as a
> convenience for SQL usage (lowercase column names avoid the need to quote
> them if the attribute table is stored in a SQL DBMS such as PostgreSQL).
> The
> cnames parameter is used to define new column names during import.
> 
> The DBF database specification limits column names to 10 characters. If
> the
> default DB is set to DBF and the input data contains longer column/field
> names, they will be truncated. If this results in multiple columns with
> the
> same name then v.in.ogr will produce an error. In this case you will
> either
> have to modify the input data or use v.in.ogr's cnames parameter to rename
> columns to something unique. (hint: copy and modify the list given with
> the
> error message). Alternatively, change the local DB with db.connect. "
> 
> am I right that the manual should be changed?
> 
> 
> 
> -----
> best regards
> Helmut
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here on my side only a chance at the end of the week to commit the change. 

If anyone able earlier, very welcome. 



-----
best regards
Helmut
--
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