apache / apache/datafusion

[EPIC] Improve `metrics` tracking in `EXPLAIN ANALYZE`

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enhancement EPIC
Dominant language
Rust
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Avg merge
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Merged PRs (30d)
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Description

### Is your feature request related to a problem or challenge?

This issue is to track ideas for improving metrics tracking, such as implementing useful metrics that are currently missing.

- [x] https://github.com/apache/datafusion/issues/16244
- [ ] https://github.com/apache/datafusion/issues/16619
- [ ] https://github.com/apache/datafusion/issues/16904
- [ ] https://github.com/apache/datafusion/issues/16945
- [x] https://github.com/apache/datafusion/issues/17027
- [ ] https://github.com/apache/datafusion/issues/18116
- [ ] https://github.com/apache/datafusion/issues/18195
- [ ] https://github.com/apache/datafusion/issues/18218
- [x] https://github.com/apache/datafusion/pull/18406
- [x] https://github.com/apache/datafusion/issues/18410
- [x] https://github.com/apache/datafusion/issues/18409
- [x] https://github.com/apache/datafusion/issues/18407
- [ ] https://github.com/apache/datafusion/issues/18456
- [x] https://github.com/apache/datafusion/issues/18689
- [x] https://github.com/apache/datafusion/issues/18795
- [x] https://github.com/apache/datafusion/pull/18577

### Describe the solution you'd like

_No response_

### Describe alternatives you've considered

_No response_

### Additional context

_No response_

Contributor guide

Open the contributing guide

Research direction

Start by reviewing the linked child issues and pull requests to understand which metrics have already been addressed and which remain open. Choose a specific outstanding item before locating its implementation and tests; this epic is complete only when the selected missing metrics work is implemented and verified.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
observability-sre
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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