On Mon, Jan 17, 2011 at 11:05:42AM +1030, james.sew...@lisasoft.com wrote:
> The latest daily doesn't help the problem so I've reverted to 3.2.2 and
> performed some more testing.
>
> I have a dataset where:
>
> ST_Union(the_geom, ST_SetSRID('LINESTRING EMPTY', 4283))
>
> Fails, yet
>
> ST_Union(the_geom).
>
> Works. There are other datasets which fail on both versions, and I have no
> doubt I can find one which works in the reverse manner.
The latter uses CascadedUnion (the one UnaryUnion uses too).
The former uses normal union (non-cascaded).
--strk;
() Free GIS & Flash consultant/developer
/\ http://strk.keybit.net/services.html
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