dhoubrechts <dhoubrechts(at)cybernet(dot)be> writes:
> Can somebody help me. I can't understand the difference between overlap
> of polygon and intersect of path.
A little looking in the code finds:
/*-----------------------------------------------------------------
* Determine if polygon A overlaps polygon B by determining if
* their bounding boxes overlap.
*
* XXX ought to do a more correct check?
*-----------------------------------------------------------------*/
Datum
poly_overlap(PG_FUNCTION_ARGS)
Feel free to submit a better implementation ...
regards, tom lane