Add tooltip linking to traces for moving average charts of scorers by serena-ruan · Pull Request #20503 · mlflow/mlflow

serena-ruan · 2026-02-02T09:37:20Z

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stack/assessments_tooltip [Files changed]
- stack/span_filters_backend_fix [Files changed]
  - stack/span_status_filter_ui [Files changed]
    - stack/tool_call_error_tooltip [Files changed]

Related Issues/PRs

#xxx

What changes are proposed in this pull request?

Add tooltip link to traces for moving average chart, this applies the selected data point's time range filter, and assessment existence.

Screen.Recording.2026-02-02.at.5.45.07.PM.mov

How is this PR tested?

Existing unit/integration tests
New unit/integration tests
Manual tests

Does this PR require documentation update?

Release Notes

Is this a user-facing change?

No. You can skip the rest of this section.
Yes. Give a description of this change to be included in the release notes for MLflow users.

What component(s), interfaces, languages, and integrations does this PR affect?

Components

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rn/none - No description will be included. The PR will be mentioned only by the PR number in the "Small Bugfixes and Documentation Updates" section
rn/breaking-change - The PR will be mentioned in the "Breaking Changes" section
rn/feature - A new user-facing feature worth mentioning in the release notes
rn/bug-fix - A user-facing bug fix worth mentioning in the release notes
rn/documentation - A user-facing documentation change worth mentioning in the release notes

Should this PR be included in the next patch release?

Yes should be selected for bug fixes, documentation updates, and other small changes. No should be selected for new features and larger changes. If you're unsure about the release classification of this PR, leave this unchecked to let the maintainers decide.

What is a minor/patch release?

Minor release: a release that increments the second part of the version number (e.g., 1.2.0 -> 1.3.0).
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Bug fixes and doc updates usually go into patch releases.

Yes (this PR will be cherry-picked and included in the next patch release)
No (this PR will be included in the next minor release)

github-actions · 2026-02-02T10:28:03Z

🛠 DevTools 🛠

Install mlflow from this PR

# mlflow
pip install git+https://github.com/mlflow/mlflow.git@refs/pull/20503/merge
# mlflow-skinny
pip install git+https://github.com/mlflow/mlflow.git@refs/pull/20503/merge#subdirectory=libs/skinny

For Databricks, use the following command:

%sh curl -LsSf https://raw.githubusercontent.com/mlflow/mlflow/HEAD/dev/install-skinny.sh | sh -s pull/20503/merge

Copilot

Pull request overview

This PR adds support for IS NULL/IS NOT NULL operators for assessment filters and implements tooltip links in overview charts that allow users to navigate to the traces tab with time range and assessment filters applied.

Changes:

Backend: Added IS NULL/IS NOT NULL operators support for assessment filters in the SQL store and search utilities
Frontend: Added IS_NULL and IS_NOT_NULL operators to the FilterOperator enum and updated filter UI to hide value input for null operators
Charts: Enhanced all overview charts with interactive tooltips that link to filtered traces views with appropriate time ranges and assessment filters

Reviewed changes

Copilot reviewed 24 out of 24 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
`tests/store/tracking/test_sqlalchemy_store.py`	Adds comprehensive tests for IS NULL/IS NOT NULL assessment filter functionality
`mlflow/utils/search_utils.py`	Adds VALID_ASSESSMENT_COMPARATORS constant with null operators support
`mlflow/store/tracking/sqlalchemy_store.py`	Implements SQL subquery logic for IS NULL/IS NOT NULL assessment filters
`mlflow/server/js/src/shared/web-shared/genai-traces-table/types.ts`	Adds IS_NULL and IS_NOT_NULL to FilterOperator enum and helper function
`mlflow/server/js/src/shared/web-shared/genai-traces-table/hooks/useMlflowTraces.tsx`	Updates filter routing to handle null operators correctly for assessments
`mlflow/server/js/src/shared/web-shared/genai-traces-table/hooks/useFilters.tsx`	Allows filters without values when using null operators
`mlflow/server/js/src/shared/web-shared/genai-traces-table/components/filters/TableFilterItem.tsx`	Adds null operators to assessment filter UI and conditionally hides value input
`mlflow/server/js/src/experiment-tracking/pages/experiment-overview/hooks/*.ts`	Adds timestampMs field to all chart data types for navigation support
`mlflow/server/js/src/experiment-tracking/pages/experiment-overview/components/*.tsx`	Updates all chart components to include tooltip links with proper memoization
`mlflow/server/js/src/experiment-tracking/pages/experiment-overview/components/OverviewChartComponents.tsx`	Implements URL generation helpers, filter creators, and enhanced ScrollableTooltip with navigation support
`mlflow/server/js/src/lang/default/en.json`	Adds internationalized messages for tooltip links
Test files	Comprehensive test coverage for new functionality across backend and frontend

Copilot · 2026-02-02T10:33:27Z

.../js/src/experiment-tracking/pages/experiment-overview/components/OverviewChartComponents.tsx

+ * @returns Filter string in format "column::operator::value::key"
+ */
+export function createAssessmentExistsFilter(assessmentName: string): string {
+  return [TracesTableColumnGroup.ASSESSMENT, HiddenFilterOperator.IS_NOT_NULL, '', assessmentName].join('::');


The function uses HiddenFilterOperator.IS_NOT_NULL but this creates an inconsistency because IS_NOT_NULL is now also available in the public FilterOperator enum (added in line 193 of types.ts). For consistency with how assessment filters are handled elsewhere in the codebase (e.g., in useMlflowTraces.tsx line 726 and TableFilterItem.tsx line 94), this should use FilterOperator.IS_NOT_NULL instead of HiddenFilterOperator.IS_NOT_NULL.

The HiddenFilterOperator enum was originally intended for operators not displayed in the UI, but now that IS_NULL and IS_NOT_NULL are user-facing operators for assessments, they should use the public FilterOperator enum.

Suggested change

return [TracesTableColumnGroup.ASSESSMENT, HiddenFilterOperator.IS_NOT_NULL, '', assessmentName].join('::');

return [TracesTableColumnGroup.ASSESSMENT, FilterOperator.IS_NOT_NULL, '', assessmentName].join('::');

Copilot · 2026-02-02T10:33:28Z

mlflow/server/js/src/shared/web-shared/genai-traces-table/hooks/useFilters.tsx

+      // IS NULL / IS NOT NULL operators don't require a value
+      if (!column || !urlOperator || (!value && !isNullOperator(urlOperator))) return filters;


The check on line 29 correctly allows null operators to proceed without a value. However, for assessment filters with null operators, the empty value string will be passed to serializedStringToAssessmentValueV2 at line 36 (outside the diff), which returns an empty string. While this doesn't cause bugs since the value isn't used for null operators, it would be clearer to explicitly handle null operators by setting the value to undefined when a null operator is used, making it clear that no value is needed for these operators.

github-actions · 2026-02-02T10:37:19Z

Documentation preview for 3765fca is available at:

https://pr-20503--mlflow-docs-preview.netlify.app/docs/latest/

More info

Ignore this comment if this PR does not change the documentation.
The preview is updated when a new commit is pushed to this PR.
This comment was created by this workflow run.
The documentation was built by this workflow run.

Signed-off-by: Serena Ruan <serena.rxy@gmail.com>

serena-ruan force-pushed the stack/assessments_tooltip branch from 670dc3f to 5bf75da Compare February 2, 2026 09:39

serena-ruan changed the title ~~tooltip for moving average chart of assessments~~ Add tooltip linking to traces for moving average charts of scorers Feb 2, 2026

serena-ruan force-pushed the stack/assessments_tooltip branch from 5bf75da to 1888a19 Compare February 2, 2026 10:24

serena-ruan mentioned this pull request Feb 2, 2026

Support null operators for assessments filters #20506

Merged

29 tasks

serena-ruan marked this pull request as ready for review February 2, 2026 10:27

Copilot AI review requested due to automatic review settings February 2, 2026 10:27

github-actions bot added the rn/none List under Small Changes in Changelogs. label Feb 2, 2026

Copilot started reviewing on behalf of serena-ruan February 2, 2026 10:28 View session

Copilot AI reviewed Feb 2, 2026

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serena-ruan force-pushed the stack/assessments_tooltip branch 3 times, most recently from 181f149 to 066f643 Compare February 3, 2026 08:21

serena-ruan requested a review from hubertzub-db February 3, 2026 10:11

serena-ruan force-pushed the stack/assessments_tooltip branch 2 times, most recently from 4ced762 to 9a320be Compare February 3, 2026 10:28

tooltip for moving average chart of assessments

3765fca

Signed-off-by: Serena Ruan <serena.rxy@gmail.com>

serena-ruan force-pushed the stack/assessments_tooltip branch from 9a320be to 3765fca Compare February 3, 2026 12:56

This was referenced Feb 3, 2026

Add span status filter support to traces UI #20541

Merged

Fix span filter combination to apply conditions on the same span #20540

Merged

Add tooltip links to tool error rate chart traces #20542

Merged

hubertzub-db approved these changes Feb 3, 2026

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github-actions bot assigned hubertzub-db Feb 3, 2026

serena-ruan added this pull request to the merge queue Feb 4, 2026

Merged via the queue into master with commit ad93fb5 Feb 4, 2026
52 of 55 checks passed

serena-ruan deleted the stack/assessments_tooltip branch February 4, 2026 02:58

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Add tooltip linking to traces for moving average charts of scorers#20503

Add tooltip linking to traces for moving average charts of scorers#20503
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serena-ruan commented Feb 2, 2026 •

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	return [TracesTableColumnGroup.ASSESSMENT, HiddenFilterOperator.IS_NOT_NULL, '', assessmentName].join('::');
	return [TracesTableColumnGroup.ASSESSMENT, FilterOperator.IS_NOT_NULL, '', assessmentName].join('::');

		// IS NULL / IS NOT NULL operators don't require a value
		if (!column \|\| !urlOperator \|\| (!value && !isNullOperator(urlOperator))) return filters;

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Release Notes

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serena-ruan commented Feb 2, 2026 •

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