matrixorigin / matrixorigin/matrixone
[Tech Request]: Reimplement hash MARK join
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kind/tech-request
priority/p0
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Description
### Is there an existing issue for the same tech request?
- [X] I have checked the existing issues.
### Does this tech request not affect user experience?
- [X] This tech request doesn't affect user experience.
### What would you like to be added ?
```Markdown
The former hash MARK join implementation is broken and abandoned. All MARK join plans are executed by nested-loop join.
We still need a working hash MARK join.
```
### Why is this needed ?
_No response_
### Additional information
_No response_
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Assessment
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