Get all snapshots active on a particular date #226
Description
Currently it seems there is no easy way to filter snapshots that were active on a particular date in the past. This could be achieved with either a date_end field to pair with the date_start field which specifies when a snapshot was superseded, or else a next_snapshot_id field/link to easily link to the snapshot that replaced it and compare its date_start field with that of the past snapshot?