Optionalactor Field actor Field ?: string
attribute History Supported attribute History Supported : boolean
Optionalchange Tracking Supported change Tracking Supported ?: boolean
geometry History Supported geometry History Supported : boolean
Optionallayer Id layer Id ?: string | number
Optionalmax Diff Window max Diff Window ?: string
Optionalminimum Snapshot Granularity minimum Snapshot Granularity ?: string
Optionaloperation Id Field operation Id Field ?: string
Optionalresource Id resource Id ?: string
Optionalretention Policy Id retention Policy Id ?: string
rollback Supported rollback Supported : boolean
Optionalschema Evolution Policy schema Evolution Policy ?: string
Optionalstable Feature Id Field stable Feature Id Field ?: string
Optionaltransaction Id Field transaction Id Field ?: string
Optionalvalid From Field valid From Field ?: string
Optionalvalid To Field valid To Field ?: string
What a source supports. Read-only history (
rollbackSupported: false) is always distinguishable from named-version editing, which is a separate contract (honua-server#371).