aminghadersohi opened a new pull request, #40307:
URL: https://github.com/apache/superset/pull/40307
### SUMMARY
Adds a `series_limit` parameter to `XYChartConfig` in the `generate_chart`
MCP tool.
When `group_by` is set on an XY chart (line, bar, area, scatter), users can
now control the maximum number of distinct series rendered by specifying
`series_limit`. The value is forwarded as `form_data["series_limit"]`, which
Superset's echarts timeseries plugins use to cap the number of rendered series
lines/bars.
**Usage example:**
```json
{
"dataset_id": 123,
"config": {
"chart_type": "xy",
"x": {"name": "order_date"},
"y": [{"name": "revenue", "aggregate": "SUM"}],
"group_by": [{"name": "region"}],
"kind": "line",
"series_limit": 10
}
}
```
When `series_limit` is not set (default `None`), the field is omitted from
form_data and Superset applies no series cap.
### BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF
N/A — backend schema change only.
### TESTING INSTRUCTIONS
1. Call `generate_chart` with an XY config that includes `group_by` and
`series_limit: 5`
2. Verify the returned `form_data` contains `"series_limit": 5`
3. Open the explore URL — the chart should show at most 5 series
4. Call without `series_limit` — verify `form_data` does not contain
`series_limit`
### ADDITIONAL INFORMATION
- [ ] Has associated issue:
- [ ] Required feature flags:
- [ ] Changes UI
- [ ] Includes DB Migration
- [x] Introduces new feature or API
- [ ] Removes existing feature or API
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