I have a (large) set of geometries (circles) that overlap.! I would like to find the nearest location outside of this group from my current location. In this example my location is the black dot. In my scenario I would like to get out of this group of circles and find the edge / border of this group, do I can draw a point on (or just outside of it), this would be the red dot.
Is there any way to achieve this using postgis without first having to draw an infinite amount of points to test against?
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