fix: table view tooltips obstruct navigation

[deon-sanchez]

This pull request makes a minor update to the extractColumnsFromRows utility function by removing the tooltipField property from the column definition. This change will prevent tooltips from automatically displaying the field value in the table.

FIX

Screen.Recording.2026-01-21.at.12.27.11.PM.mov

BUG

Screen.Recording.2026-01-21.at.12.27.51.PM.mov

JIRA: https://datastax.jira.com/browse/LFOSS-3291?atlOrigin=eyJpIjoiNDI2OTkyNGIwMjQzNDk3Mzk3YjVhZTc5MmIzYzRjMmYiLCJwIjoiaiJ9

Summary by CodeRabbit

• Bug Fixes
  • Union mode columns will no longer display unwanted tooltips.

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[coderabbitai]

Walkthrough

This PR removes a single line of code from the extractColumnsFromRows function in the utils module. When the mode is "union", column definitions previously included a tooltipField property assignment, which is now deleted.

Changes

Cohort / File(s)	Summary
Tooltip field removal src/frontend/src/utils/utils.ts	Removed tooltipField: key property assignment from union-mode column definitions in extractColumnsFromRows function

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 4 | ❌ 3

❌ Failed checks (1 error, 1 warning, 1 inconclusive)

Check name	Status	Explanation	Resolution
Test Coverage For New Implementations	❌ Error	The PR modifies extractColumnsFromRows to remove tooltipField, but no test files are included to verify the fix or provide regression coverage.	Add test coverage validating that tooltipField is not added in union mode and tooltips no longer obstruct navigation.
Test File Naming And Structure	⚠️ Warning	The pull request removes a line from extractColumnsFromRows function without adding corresponding test coverage for the change.	Add test file src/frontend/src/utils/tests/extractColumnsFromRows.test.ts with tests for union/intersection modes, excludeColumns parameter, empty rows, and edge cases.
Test Quality And Coverage	❓ Inconclusive	Unable to locate or verify test coverage for the modified utility function in this PR.	Verify that tests exist for the extractColumnsFromRows function and confirm whether new tests were added to cover the removed tooltipField property change.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Excessive Mock Usage Warning	✅ Passed	The custom check for 'Excessive Mock Usage Warning' is not applicable to this PR. The PR contains only a single-line modification to src/frontend/src/utils/utils.ts, removing the tooltipField property from column definitions. Since this PR does not modify any test files and the custom check is designed to review test files for excessive mock usage patterns, there is no scope for this check to evaluate within these changes.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title directly describes the main change: removing tooltips that obstruct navigation in the table view.

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✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch lfoss-3291

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[github-actions]

Frontend Unit Test Coverage Report

Coverage Summary

Lines	Statements	Branches	Functions
	17.55% (5029/28651)	10.89% (2403/22052)	11.64% (731/6276)

Unit Test Results

Tests	Skipped	Failures	Errors	Time
2006	0 💤	0 ❌	0 🔥	25.598s ⏱️

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 34.75%. Comparing base (700ae9b) to head (c87e190).
⚠️ Report is 2 commits behind head on main.

❌ Your project status has failed because the head coverage (41.63%) is below the target coverage (60.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #11396   +/-   ##
=======================================
  Coverage   34.75%   34.75%           
=======================================
  Files        1417     1417           
  Lines       67658    67658           
  Branches     9931     9931           
=======================================
  Hits        23517    23517           
  Misses      42917    42917           
  Partials     1224     1224           

Flag	Coverage Δ
frontend	16.06% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/frontend/src/utils/utils.ts	16.90% <ø> (ø)

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