[gdal-dev] RE: Copying FIDs into existing PG schema

[Jeremy Palmer]

Any chance? Should I log a bug report?

> 
> Hi
> 
> When using the config PG_USE_COPY option the copy command does not include the
> destination FID in the field list. In my case the destination FID field is a primary key
> with a not null constraint, so the copy fails.
> 
> e.g.
> 
> ogr2ogr --config PG_USE_COPY TRUE -append -preserve_fid -f "PostgreSQL"
> "PG:host=localhost user=myuser dbname=my_db" test.vrt -lco
> GEOMETRY_NAME=shape -nln test3 -select id,data1,data2
> 
> when the destination table looks like this:
> 
> CREATE TABLE test3
> (
>   id integer NOT NULL PRIMARY KEY,
>   data1 TEXT,
>   data2 TEXT,
>   shape geometry
> );
> 
> However when I don't use the PG_USE_COPY option and the driver uses plain SQL
> inserts it works e.g:
> 
> ogr2ogr -append -preserve_fid -f "PostgreSQL" "PG:host=localhost user=myuser
> dbname=my_db" test.vrt -lco GEOMETRY_NAME=shape -nln test3 -select
> id,data1,data2
> 
> Looking down into this it seems it has to do with the layers FieldDefn not including the
> FID in its list, and the OGRPGTableLayer::BuildCopyFields() method only adding the
> FID to the copy field list if it's in the layer FieldDefn. While the
> CreateFeatureViaInsert() method only checks if the FID field is set for the layer and
> the feature itself has the FID data set.
> 
> Is there a specific reason for the OGRPGTableLayer::BuildCopyFields (and
> CreateFeatureViaCopy) checking that the field must exist in the layer FieldDefn before
> adding it to the copy field list? Or is this a bug?
> 
> Cheers,
> Jeremy
> 

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