tursodatabase / tursodatabase/libsql

SQLite allows foreign keys on non-existing columns?

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enhancement question
Dominant language
C
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Avg merge
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Merged PRs (30d)
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Description

There's a report of SQLite allowing the creation of a foreign key on a non-existing column. Let's look into this to understand if that's really something SQLite is supposed to allow and then think about potential ways to prevent that in libSQL.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No file or test is named. Start by reproducing the reported foreign-key definition in SQLite and libSQL, then compare the behavior with the expected validation rules. Done means establishing whether this is SQLite-compatible and documenting an agreed approach for preventing it in libSQL.

Written by the indexing model from the issue text.

Assessment

Tech stack
sqlite
Domain
databases
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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