CREATE TAG INDEX firstName ON person(firstName(20));
REBUILD TAG INDEX firstName;
# Q1 time spent 29041/38225 us
match (v1:person {firstName: "Abbas"}) <- [e:knows] - (v2:person{firstName: "John"}) return v1,v2
# Q2 time spent 895244/901047 us
match (v1:person {firstName: "John"}) - [e:knows] -> (v2:person{firstName: "Abbas"}) return v1,v2