Variable-Length Edge Traversal Fails with “could not open relation with OID 0” and Returns Empty Results on…

Variable-Length Edge Traversal Fails with “could not open relation with OID 0” and Returns Empty Results on…: a task in LegoFlow-SWE (Harbor dataset). When a variable-length edge (VLE) pattern is used in a cypher query on a graph that has already been loaded, the first execution throws a fatal…