[postgis-devel] Current regression test status of jdbc driver update

[strk at refractions.net]

On Thu, Jan 20, 2005 at 11:46:01AM +0100, Markus Schaber wrote:
> Hi,
> 
> This morning, I just retested my java code against a server running
> PostGIS 0.9 CVS, PostGIS 0.8.1 and PostGIS 1.0 CVS.
> 
> TestParser results: 1.0 CVS passes all tests, while 0.9 equally and
> 0.8.1 fail on 22 tests. There are three categories why those tests fail:
> 
> - Deeply nested Geometries not accepted by hwgeom implementation
>   (e. G. a Geometry Collection containing two MultiPoints or both
>   Points and MultiPoints), 8 tests fail due to this.
>   "Server side error: [...] couldn't parse Objects in Geometry"
> 
> - Deeply nested Geometries flattened by hwgeom (e. G. a Geometry
>   Collection containing Multi* geometries of distict types gets
>   flattened to a Collection directly the base types), this causes
>   8 Tests to fail.
>   "[reparsed] Geometries after SQL are not equal!"
> 
> - Empty Geometry Representations not understood by old PostGIS (but
>   OpenGIS compliant). This only hits MULTI* geometries, the simple
>   Geometries and GeometryCollection work. Causes 6 more failures.
>   "Server side error [...]"
> 
> As you can see, all those tests are no JDBC java code problems, but
> either located on the server side or just invalid test cases for this
> server version, depending on your way of seeing it :-)
> 
> I do not think it is worth the effort to correct those issues in 0.9
> branch (except someone pays for it :-), we should concentrate on getting
> 1.0 out and stable.

I agree, also fixing the collection flattening (2/3 of the problems)
would require an internal storage format change, which is what LWGEOM
is there for.

--strk;


> 
> But maybe we should document those test failures in the readme (btw, the
> readme should be heavily updated, maybe I'll find enough time to do this
> today).
> 
> HTH,
> Markus
> --
> markus schaber | dipl. informatiker
> logi-track ag | rennweg 14-16 | ch 8001 zürich
> phone +41-43-888 62 52 | fax +41-43-888 62 53
> mailto:schabios at logi-track.com | www.logi-track.com



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