[FEATURE] 支持算子血缘
- Dominant language
- Scala
- Stars
- 2.4k
- Forks
- 1k
- PR merge metrics
- No merged PRs in 30d
Description
### Code of Conduct
- [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
### Search before asking
- [X] I have searched in the [issues](https://github.com/apache/incubator-kyuubi/issues?q=is%3Aissue) and found no similar issues.
### Describe the feature
@iodone 需要知道输出表某个字段加工口径,例如 c = concat(a, ' ', b) ,血缘信息中保留c 的加工表达式。
### Motivation
_No response_
### Describe the solution
_No response_
### Additional context
_No response_
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
Contributor guide
Research direction
No files, tests, or entry points are named. Start by locating the existing lineage implementation and checking how it handles derived output columns, then compare the concat example with current behavior. Done means the lineage for c retains the expression c = concat(a, ' ', b).
Written by the indexing model from the issue text.
Assessment
- Tech stack
- scala, spark, sql
- Domain
- data-engineering
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100