Neo4j node MATCH with relationship

[bo Sun]

on Neo4j webpage, following cypher command could return two node

       MATCH p=(n:MAC {MacAddr:'0022.bdf8.0005'})-[:UP_LINK]->()RETURN p

In these two nodes, relationship is "UP_LINK", source node is 'n' with a specific value, and it also return destination node,

but in neo4j-go-driver:

the following code:

      cypher := `MATCH p=(n:MAC {MacAddr:'0022.bdf8.0005'})-[:UP_LINK]->()RETURN p`

      result, err := tx.Run(Cypher, nil)

it could not match any node and result.Err() is nil.

anyone can comments on this?

Thanks and regards!

bosun.