Patroni Postgres Cluster, what does 'TL' mean in the output of 'patronictl list'

Question

Executing.

patronictl list 

Produces

+ Cluster: psql-core03-uat-kong (6867488892458676291) ------+----+-----------+ | Member | Host | Role | State | TL | Lag in MB | +------------------------+---------------+--------+---------+----+-----------+ | psql-podname-blahbla-0 | ##.##.###.## | Leader | running | 46 | | | psql-podname-blahbla-1 | ##.##.###.## | | running | 21 | 14288 | | psql-podname-blahbla-2 | ##.##.###.## | | running | 46 | 0 | +------------------------+---------------+--------+---------+----+-----------+ 

Does anyone know what the column 'TL' stands for, means? Scoured the manuals but no joy.

Thanks

Answer 1

A quick search of the source indicates that it means timeline.