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List:       postgis-users
Subject:    Re: [postgis-users] Enormous file geodatabase feature class
From:       Chris Hermansen <chris.hermansen () timberline ! ca>
Date:       2008-02-19 16:52:25
Message-ID: 47BB0949.7020202 () timberline ! ca
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Frank, I think Dana has one of those new FILE based geodatabases which
AFAIK doesn't use any Access features.  According to someone in our
office who keeps up with such things this is a newer, more reliable
format that breaks the 2Gb barrier.

Frank Warmerdam wrote:
> dnrg wrote:
>> Is there a utility for importing an ESRI file
>> geodatabase into PostgreSQL/PostGIS? 
>
> Dana,
>
> You can use the ogr2ogr utility distributed as part
> of GDAL/OGR.  The FWTools binaries for win32 include
> both ESRI Geodatabase and PostGIS support, so with that
> you could do something like:
>
> ogr2ogr -update PG:dbname=yourdb bighonkinggeodb.mdb yourfeatureclassname
>
> to load all the features in the layer yourfeatureclassname
> into the postgres database yourdb from the personal
> geodatabase bighonkinggeodb.mdb.
>
> You may find it helpful to use ogrinfo on your .mdb
> file to determine the name of layers as OGR sees them.
>
>> Finally, does it look like ESRI will ever open its
>> geodatabase format in the way they've opened up the
>> shapefile? I tend to doubt it, considering all the
>> stored procedures and triggers it must use to maintain
>> the consistency of the data. But still, someone could
>> do an implementation of it if the geodatabase format
>> was fully documented and opened to others like they
>> did with the shapefile.
>
> The personal geodatabase format is reasonably reverse
> engineerable via ODBC however so far the OGR driver is
> readonly as creating the datasets in fully consistent
> form is harder.
>
>> Otherwise, I see no real commitment to
>> interoperability--with the geodatabase being ESRI's
>> format / data model / whatever you want to call it /
>> of choice.
>
> Reportedly the new file based geodatabase will be open
> in some fashion in the future.  I suspect this will take
> the form of an ESRI provided free (of cost) SDK rather
> than a format specification or actual source code - but
> details are not yet available as far as I know.
>
> Giving them the benefit of the doubt, I think the would like
> to be open, but it just isn't much of a priority.
>
> Best regards,


-- 
Regards,

Chris Hermansen · mailto:clh@timberline.ca
tel:+1.604.714.2878 · fax:+1.604.733.0631
Timberline Natural Resource Group · http://www.timberline.ca
401 · 958 West 8th Avenue · Vancouver BC · Canada · V5Z 1E5

C'est ma façon de parler.

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