Magic Property | AllegroGraph 9.0.1
Author: Franz Incorporated

Copyright (c) 2005 - 2026 Franz, Incorporated
Last updated 27 May 2026 at 10:35

# SPARQL Magic Property

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## http://franz.com/ns/allegrograph/3.0/temporal/intervalMetBy

Example:

    ?x t:intervalMetBy ?y

Matches interval `?x` and interval `?y` such that `?x` is met by `?y` on the timeline.

`?x` and `?y` can be defined as intervals using either times or points (though they must both be defined using the same mechanism).

I.e., Either `?x` has `t:starttime` `?startTime` and `?y` has `t:endtime` `?endTime` and `?startTime` is the same as `?endTime` or `?x` has `t:startpoint` `?startPoint` and `?y` as `t:endpoint` `?endPoint` and `?startPoint` is simultaneous with `?endPoint`.

### Notes

The following namespace abbreviations are used:

- fti - <http://franz.com/ns/allegrograph/2.2/textindex/>
- geo - <http://franz.com/ns/allegrograph/3.0/geospatial/>
- geofn - <http://franz.com/ns/allegrograph/3.0/geospatial/fn/>
- nd - <http://franz.com/ns/allegrograph/5.0/geo/nd#>
- ndfn - <http://franz.com/ns/allegrograph/5.0/geo/nd/fn#>
- sna - <http://franz.com/ns/allegrograph/4.11/sna/>

The SPARQL magic properties reference has additional information on using AllegroGraph magic properties and functions.