[Gdal-dev] PostGIS Driver Performance
Frank Warmerdam
fwarmerdam at gmail.com
Thu Jul 28 09:47:26 EDT 2005
On 7/28/05, Oleg Semykin <oss-dev at rambler.ru> wrote:
> Hi Craig!
>
> Why the PostgreSQL driver loads all non-system tables from the database
> as layers? When we have a lot of tables this results in too big
> overhead. When we are working with PostGIS all layers are listed in the
> geometry_columns table and we can use it to prepare a list of tables to
> load. I can modify the driver to load only layers from the
> geometry_columns table when we have PostGIS and fallback to the old
> behaviour when we have plain PostgreSQL.
Oleg,
I would be agreeable to such a change in the behavior of
OGRPGDataSource::Open().
Best regards,
--
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I set the clouds in motion - turn up | Frank Warmerdam, warmerdam at pobox.com
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and watch the world go round - Rush | Geospatial Programmer for Rent
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