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Re: [udig-devel] running udig and eclipse in parallel
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To the best of my knowledge it doesn't matter what type of key the
primary key is, in fact I don't think that it has to be a number.
Jesse
On 13-Apr-06, at 10:35 AM, Markus Schaber wrote:
Hi, Jesse,
Jesse Eichar wrote:
The difficulty here is that a FID must be consistent over time,
ie must
refer to the same feature regardless of whether features are
added or
deleted. I admit that one should still be able to view the data
regardless, maybe the editing wouldn't be possible but editing
really
should. I will make a bug report to this effect and try to fix
it in a
timely manner.
Okay, we actually have a distinct ID on every table, but it is not
created as primary key (and does not even have a unique index on
most of
the tables as our own apps usually select on the geometry index.
Most time, I need read-only access only, mostly for investigations of
some special cases where our app chokes on the data.
I'm happy to define a primary key in for editing / writing cases. Btw,
this actually is one of the reasons I'm evaluating uDig: I'm
looking for
alternatives to QGis, which needs an int4 as primary key (we usually
have int8), and even manages to crash the X server (!) on a rather
large, but valid polygon (about 1.5 mio vertices, and about half a
million of them in the outer ring).
Maybe I'll put together my results, and post them here or somewhere on
the web and the pointer here.
Markus
--
Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf. | Software Development GIS
Fight against software patents in EU! www.ffii.org
www.nosoftwarepatents.org
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