Adding a small feature to PostGIS topology

[Sandro Santilli]

On Sun, Mar 15, 2026 at 01:44:06AM +0000, Scott Smith wrote:
> The edge_topo table was populated using those indices. However, I am
> not aware of anything in the indices that identifies what edges follow
> each other.

Those are the the next_left_edge and next_right_edge fields.
Those tell you which edge follows while you walk on the specific
side of the edge (forward on the left, backward on the right).

Once you are on the next edge, if the other side face is still part of
the topogeometry you can continue looking for the next one and so on.

--strk;
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