michaelmorera92 commented on PR #37405:
URL: https://github.com/apache/superset/pull/37405#issuecomment-3863110923
This ticket was tested. The application is working as expected.
# Scenarios tested
Verify the bar chart and values are correctly displayed when the values are
negative.
| Variant | Status |
| -------- | -------- |
| Negative values | :white_check_mark: |
| Positive values | :white_check_mark: |
| Vertical view | :white_check_mark: |
| Horizontal view | :white_check_mark: |
| Stacked Style: stack | :white_check_mark: |
| Stacked Style: none | :white_check_mark: |
## Steps
1. Create a stacked bar chart with mixed positive and negative values:
2. Go to http://<ephemeral_or_showtime>/sqllab and paste the "SQL Lab Query"
(provided later on this comment) script for ALL negative values
3. Press the "Create chart" button
4. Configure:
- Chart Type: Time-series Bar Chart
- X-axis: column1
- Metrics: SUM(column3)
- Customize tab:
- Show Value: ✓ Enable
- Stacked Style: Stack
## Expected result
After the step 4 (clicking the update chart button):
- Check the labels are positioned inside the bar at the very edge.
- Check the color scheme changed and make sure the label changes its color
to keep the color ratio according to AA standard
## SQL Lab Query
> WITH chart_data AS (
> SELECT *
> FROM (VALUES
> ('Bar 1', 'Segment A', -10),
> ('Bar 1', 'Segment B', -5),
> ('Bar 2', 'Segment A', -7),
> ('Bar 2', 'Segment B', -3),
> ('Bar 3', 'Segment A', -12),
> ('Bar 3', 'Segment B', -6)
> ) AS t(bar, segment, value)
> )
> SELECT *
> FROM chart_data;
## Evidence
### Negative, fixed and not fixed comparison.
### Color changes also applied correctly to positive values.
<img width="1914" height="999" alt="Screenshot 2026-02-06 at 5 51 24 PM"
src="https://github.com/user-attachments/assets/e4809709-5dcb-49fc-8aae-c8478631d489";
/>
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