Performance of using REVERSELY

[PhungQuocLuong-git]

Hello,
I am analysing graph 2-way-relationship presented by 2 edges( Ex: Sam has a pen/ A pen is belonged to Sam). I wonder if I use REVERSELY which can optimize my relationship down to 1 edge, does it decrease graph performance compared to using 2 edges presented for that 2-way-relationship ?
Thank :))

[QingZ11]

In nebulagraph, although you have inserted an a->b edge, you can use the REVERSELY clause to find the reverse edge. refer docs:https://docs.nebula-graph.io/3.4.0/3.ngql-guide/7.general-query-statements/3.go/#syntax

In a word, any edge in the nebulagraph is stored in two copies, the outgoing edge and the incoming edge