The id the store gave it.
The caller's operation, unique among the store's reservations.
The amount reserved for every run the operation may have, in micro-dollars.
What the row settles at: each ended run's settled figure and each other run's whole bound.
The runs begun.
When the lease of the run holding it ends, or null when no run holds it.
The number of the run holding the lease, or null. Run numbers only grow, so it is a fencing token.
When the row's window closes.
When it settled, or null while open.
One operation reservation as a store reads it.