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Select, As Of Duration

Duration expressions represent periods of time, and in Fluree, we specifically use duration to periods of time before the present. Duration expressions in ISO-8601 duration format. ISO-8601 duration format always begin with a "P". Every increment of time is represented as a capital letter and the amount of that unit is placed before the letter.

Any units of time less than a day are preceded by a "T". A few examples:

  • P60Y: 60 years ago
  • P5YT10M: 5 years and 10 minutes ago
  • PT10H54M: 10 hours and 54 minutes ago
  • P2Y1M20DT5H16M: 2 years, 1 month, 20 days, 5 hours, and 16 minutes ago

There are good resources explaining more about this format.

If we wanted to select 10 actors as of 2 months ago, we could issue:

"select": ["*"],
"from": "actor",
"block": "P2M",
"limit": 10

Select 2 Movies (`movie`), as of 2 hours and 10 minuntes ago