Beginning with Trickster v1.1, certain features like Fast Forward can be toggled a per-query basis, to assist with compatibility in your environment. This allows the drafters of a query to have some say over toggling these features on queries they find to have issues running through Trickster. This is done by adding directives via query comments. For example, in Prometheus, you can end any query with # any comment following a hashtag, so you can place the per-query instructions there.
Instruction trickster-fast-forward
Supported for: Prometheus (other time series do not currently implement Fast Forward)
Usage: go_goroutines{job="trickster"} # trickster-fast-forward:off
Notes: This can only be used to disable fast forward. A value of on will have no effect.
Instruction trickster-backfill-tolerance
Supported for: All time series backends
Usage: SELECT time, count(*) FROM table # trickster-backfill-tolerance:120
Notes: This overrides the backfill tolerance value for this query by the specified value (in seconds). Only integers are accepted.