Frank, thanks for the info.
> You may find it helpful to use ogrinfo on your .mdb
> file to determine the name of layers as OGR sees
> them.
So you're saying OGR does not support the file
geodatabase (*.gdb) today.
The personal geodatabase (*.mdb) has a limitation,
last I checked, of 2G--that's all Access supports. My
data is at least 7G, so I may initially have to use
the file geodatabase format, if I have to use an ESRI
product at all.
But I'm sure I can work around the 2G personal
geodatabase limitation(*.mdb). I'm glad OGR can work
with geodatabase mdb files.
> Giving them the benefit of the doubt, I think the
> would like to be open, but it just isn't much
> of a priority.
Sounds good to me. Here's hoping.
Paul, you wrote:
> Tables, they're called tables. Why must everything
be
> re-named in ESRI-land? Oh wait, I forgot, "GIS is
> different".
But Paul, "Feature Classes" are double-plus good. And
I vid'ee (while I'm mixing dystopian references
here--"Orange" you glad...), charitably, that they
might have chosen the term to favor the language of
object orientation than the language of newspeak. Or
not. Table is simpler for sure.
> People have loaded the 500M features of UK Ordnance
> Survey into PostGIS. Refractions has 20M feature
> hydrology databases. TIGER has been loaded
> many times (50M features).
Thanks for that. So PostGIS is ready for prime time.
>> My system will be an OLAP, not an
>> OLTP--so once the data is loaded, there won't be
>> much
>> editing to speak of.
> Then it won't be particularly concurrent. It's write
> contention that causes concurrency issues, not read
> contention.
It'll be concurrent--many concurrent reads onlys; few
writes.
I misspoke when I said OLAP--won't have a star or
snowflake schema, etc. And the queries won't take long
to run.
It will be a mostly read-only, spatial database, hit
(probably) through a browser / MapServer to get to
PostgreSQL/PostGIS.
> Finally, does it look like ESRI will ever open its
> geodatabase format in the way they've opened up the
> shapefile?
That is an issue worth exploring, since the official
pronouncements
have said it would be open, but I never really thought
it was worth
agitating over since the format hadn't "arrived". But
it's part of a
shipping product now. Hm. Where's our open access?
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