document topology.GetRingEdges

[strk]

The function was added in r7185 It is using default args, and is documented right before the function definition. Should be documented in the manual page.

Note that this is the first function using the next_left_edge/next_right_edge fields in the topology edge table, which means it will fail to give any meaningful answer against topologies with those fields not properly setup (as those constructed using AddEdge/AddFace at time of writing)

[robe]

Oh I still owe you the recursive CTE equivalent too so we can compare speeds :)

[strk]

Yeah. Note that my version has a simple loop detection and an iteration limit for your greater fun :)

[pramsey]

Is this going to happen?

[strk]

It happened in r9096