[postgis-users] Re: Problem with MultiLineString

[pcreso at pcreso.com]

-
> Thank you!  That's got to be it.  I knew I just needed a
> third eye, didn't even see that.  A followup question
> might be why is this geometry allowed to be created if it is
> then considered invalid by certain functions?
> 
> Ken


The reason is documented. The overhead for validating all geometries as entered is generally unecessary. For cases where it is appropriate, an insert trigger using isvalid() can be used to provide this capability.


Cheers,

   BRnet Wood