> select "score","i_unique"::tag  from "events.flow"  limit 4
name: events.flow
time                score i_unique
----                ----- --------
1563464912039000000 462   "42422440-41124048-155896-42266768-229624-233640"
1563464912042000000 462   "42422440-41124048-155896-42266768-42352808-42270864"
......
> select "score","i_unique"::tag  from "events.flow"  where "i_unique" = '42422440-41124048-155896-42266768-229624-233640'
>