Clarify missing column messages

[victorlin]

Description of proposed changes

See commit messages and linked issue

Related issue(s)

Closes #1592

Checklist

• [x] Automated checks pass
• [x] Check if you need to add a changelog message
• [x] Check if you need to add tests
• [x] Check if you need to update docs

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 71.02%. Comparing base (f05cb32) to head (03e2b69). Report is 110 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1604 +/- ## ======================================= Coverage 71.02% 71.02% ======================================= Files 79 79 Lines 8256 8256 Branches 2003 2003 ======================================= Hits 5864 5864 Misses 2101 2101 Partials 291 291 ```

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