8000 feat: support DESCRIBE FRAGMENT <fragment_id> by devin-ai-integration[bot] · Pull Request #21588 · risingwavelabs/risingwave · GitHub
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feat: support DESCRIBE FRAGMENT <fragment_id> #21588

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feat: support DESCRIBE FRAGMENT <fragment_id> #21588

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Implements future work items from #21432:

  • Support DESCRIBE FRAGMENT <fragment_id> to debug specific fragments
  • Add meta client API to fetch a specific fragment's definition
  • Enhance output with relation name information (placeholder for now)
  • Support verbosity options with WITH (VERBOSE)

Link to Devin run: https://app.devin.ai/sessions/6753cd1172394be0b06a6dace136f034
Requested by: xxchan

@devin-ai-integration @xxchan
feat: support DE 8000 SCRIBE FRAGMENT <fragment_id> #21432
f355ec0 
Co-Authored-By: xxchan <xxchan22f@gmail.com>
@devin-ai-integration Devin.ai Integration
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Original prompt from xxchan:

Please implement the future work items described in issue https://github.com/risingwavelabs/risingwave/issues/21432 related to the `DESCRIBE FRAGMENTS` command.

Background information and discussions can be found here:
- https://github.com/risingwavelabs/risingwave/pull/21354#pullrequestreview-2771042809
- https://github.com/risingwavelabs/risingwave/issues/21254

The initial implementation of `DESCRIBE FRAGMENTS` is located in `src/frontend/src/handler/describe.rs`. Refer to the impl in #21354

Specifically, implement the following:

- Support `describe fragment <fragment_id>`:
    - This will be useful for debugging when encountering problematic fragment IDs in logs.
    - Implement a meta client API to fetch a specific fragment's definition. 
    - Render the fragment using a similar format to `DESCRIBE FRAGMENTS`.
    - Additionally, include more information about the Fragment, such as the relation name. 
- Refine the pretty print format to show more information.
    - Support options to tweak verbosity.

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@github-actions github-actions bot added the type/feature Type: New feature. label Apr 27, 2025
@devin-ai-integration devin-ai-integration bot mentioned this pull request Apr 27, 2025
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Closing due to inactivity for more than 7 days.

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