tonsky / tonsky/datascript

Allow calling `clojure.core` functions in queries

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#424 3 comments 0 reactions 0 assignees View on GitHub

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Dominant language
Clojure
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Description

In Datomic:

(q
 '[:where
   [(ground {}) ?m]
   [(assoc ?m :x 5) ?m2]
   :find ?m2 .])

returns {:x 5}. But it fails in datascript with clojure.lang.ExceptionInfo: Unknown function 'assoc in [(assoc ?m :x 5) ?m2]

Should we allow all functions in clojure.core (except eval) in datascript as well?

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Research direction

No file or test is named. Start by locating DataScript's query function-resolution path and its handling of unknown functions, then compare it with the shown Datomic queries. Done requires a decided, tested policy for allowing clojure.core functions while excluding eval.

Written by the indexing model from the issue text.

Assessment

Tech stack
clojure
Domain
database
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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