I previously was able to load a large .pbf file into the APIDB and then use osmosis to do minutely extraction. I would like to test this with postgresql 10, but it seems the previous index on xid (system column) is no longer supported in postgresql 10. Just wondering if something has changed in the indexing on postgresql 10. Previous index command: ` CREATE `CREATE INDEX nodes_xmin_idx ON nodes USING Btree ((xid_to_int4(xmin)));` btree (xid_to_int4(xmin)) ` Error: `index creation on system columns is not supported`

I previously was able to load a large .pbf file into the APIDB and then use osmosis to do minutely extraction. I would like to test this with postgresql 10, but it seems the previous index on xid (system column) is no longer supported in postgresql 10. Just wondering if something has changed in the indexing on postgresql 10. Previous index command: ` CREATE INDEX nodes_xmin_idx ON nodes USING Btree ((xid_to_int4(xmin)));` Error: `index creation on system columns is not supported`