Comments (3)
Interesting! Yeah we'll have to think about maybe extending Aggregate
to support multiple different aggregations on the same relation? Because both semantics can be useful at times (maybe not for Datalog, but in general).
from clj-3df.
An example would be:
:find ?team (count ?score) (avg ?score) (median ?score)
...
I think datomic implements it.
from clj-3df.
Quoting myself:
We can look at something like (->Aggregation [fn vars ...] [fn vars ...] ...+)
. Should also allow for the most efficient implementations (e.g. re-use the same grouping and compute multiple aggregates per group).
from clj-3df.
Related Issues (20)
- FnExpr symbols and implicit clause order HOT 1
- Constant bindings HOT 1
- 3DF DB should be protocol for encoding queries
- Add support for transforms in the find-spec itself
- Add support for aggregations in clauses
- Add CloseInput support
- Support for pull query HOT 2
- Pagination HOT 1
- `min` and `max` don't work as expected HOT 1
- How to run clj-3df? HOT 7
- Update examples HOT 2
- Error handling HOT 1
- default clauses for datalog HOT 5
- exec! is not batching commands HOT 1
- Cljs: clj_3df.compiler.trace_bindings is undefined HOT 2
- UUID serialization for entity id's HOT 1
- Roadmap? HOT 4
- retraction of an inexistent value of cardinality/one causes server panic HOT 1
- Datahike support? HOT 4
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