codeant-ai-for-open-source[bot] commented on PR #37345:
URL: https://github.com/apache/superset/pull/37345#issuecomment-3787031283
## **Sequence Diagram**
Shows how custom_errors are extracted from engine specs, merged into
generated database docs, and surfaced in the UI as an "Errors" tag and a
Troubleshooting section on each database page.
```mermaid
sequenceDiagram
participant CI / Dev as Docs Generator
participant Extractor as extract_custom_errors.py
participant DatabasesJSON as databases.json
participant DocsUI as Frontend (DatabaseIndex / DatabasePage)
participant User
Docs Generator->>Extractor: Run extraction script (python) to parse
engine specs
Extractor-->>Docs Generator: JSON map of module -> custom_errors
Docs Generator->>DatabasesJSON: Merge custom_errors into each DB doc
entry
DocsUI->>DatabasesJSON: Load generated databases data (with
custom_errors)
DocsUI-->>User: Show "Errors" tag (count) in index and render
Troubleshooting section on DB page
```
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