codeant-ai-for-open-source[bot] commented on PR #38568:
URL: https://github.com/apache/superset/pull/38568#issuecomment-4054648532
## **Sequence Diagram**
This PR adds a configurable allowlist for Time Grain native filters.
Dashboard authors can save a selected subset of time grains, and at runtime the
filter shows only that subset while keeping legacy behavior when no allowlist
is stored.
```mermaid
sequenceDiagram
participant Author as Dashboard Author
participant Config as Filter Config UI
participant Dataset as Dataset Metadata
participant Store as Dashboard Configuration
participant Runtime as Filter Runtime
Author->>Config: Open time grain filter settings
Config->>Dataset: Load supported time grains
Dataset-->>Config: Return available time grains
Author->>Config: Select allowed grains and save
Config->>Store: Persist time_grains when subset selected
Runtime->>Store: Load filter settings and time grains
alt time grains configured
Runtime->>Runtime: Apply allowlist to time grain options
else time grains missing
Runtime->>Runtime: Keep all available time grains
end
```
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