typelevel / typelevel/grackle

Use DB metadata to verify ColumnRefs

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enhancement
Dominant language
Scala
Stars
189
Forks
32
Avg merge
18h 31m
Merged PRs (30d)
37

Description

Define a method on SqlMapping that verifies referenced columns exist and are declared with compatible types and nullity.

Contributor guide

Open the contributing guide

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

Start by reading the existing SqlMapping and ColumnRefs definitions and the code that accesses database metadata. Define completion as detecting missing referenced columns and incompatible declared types or nullity, with behavior covered by the repository's existing tests if applicable.

Written by the indexing model from the issue text.

Assessment

Tech stack
scala
Domain
databases
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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