Removing edges cause previous NID overwritten

Questions
#1

Hi,
After removing edges in subgraph, the NID was rearanged, and the original NID which maintain the node id in the large graph lost.
The following is the notebook.

image
image740×650 13.4 KB

I think dgl should give users a warning if they do something to transforme the graph struture while they have mantained NID and EID.

#2

There is an similar issue of remove_edges. We changed the behavior in PR#2465 so that remove_edges and remove_nodes by default no longer generate dgl.NID and dgl.EID. Please install the latest the nightly-build and see if the problem has been fixed. Thanks!

#3

Here we no longer generate dgl.NID means when user access this field, we will report a key error, or we will treat the subgraph as a normal graph, regenerate dgl.NID, drop its info in the whole graph?

#4

It means remove_edges and remove_nodes will not generate a new NID or EID feature field and thus will not override any existing fields.

#5

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.