Clojurians Log v2
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datascript
Immutable database and Datalog query engine for Clojure, ClojureScript and JS
lilactown 2020-03-04T21:18:39.013200Z
looking for info on a sort of nuanced datalog question…
say I am using datascript (or some other datalog engine) as a cache of some data from several difference sources.
Something akin to:
• :person/name, :person/age, :person/id all come from one data source
• :person/order-history comes from another data source
• :order/id, :order/contents, and :order/owner-id all come from yet another data source
etc.
is it possible to always know which data sources a particular query depends on by simply inspecting the query as data?
lilactown 2020-03-04T21:25:39.014300Z
put another way, is it possible to construct a datalog query where an attribute that it depends on is ambiguous?