kaknikhil commented on code in PR #592:
URL: https://github.com/apache/madlib/pull/592#discussion_r1113499040
##########
src/ports/postgres/modules/graph/sssp.py_in:
##########
@@ -325,7 +325,10 @@ def graph_sssp(schema_madlib, vertex_table, vertex_id,
edge_table,
WHERE {vertex_id} IS NOT NULL
""".format(**locals()))[0]['count']
- for i in range(0, v_cnt + 1):
+ # The algorithm should converge in less than |V|+1 iterations.
+ # Otherwise there is a negative cycle in the graph.
+ # We check for v_cnt+1 because the first iteration is spent on the
setup
Review Comment:
shouldn't this comment be `We check for v_cnt+2`
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