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Warn about unused vars in query

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
clojure
Domain
databases

Research direction

Start with the example query and expected warning as the specification, then locate the query-processing entry point that handles variable references. Add a regression check for the reported typo case and verify that genuinely intentional single-use variables can still be replaced with '_'. Done means the warning is emitted with the expected variable names and wording.

Written by the indexing model from the issue text.

Description

Might save some time finding typos

[:find ?day ?meal
 :where [?day :day/dailies ?daily]
        [?dayily :daily/meal ?meal]]

Expected output:

WARN '?daily', '?dayily' are only referenced once, possible typo? Or consider replacing them with '_'.
Dominant language
Clojure
Stars
5.8k
Forks
318
PR merge metrics
No merged PRs in 30d

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