apache / apache/kyuubi

[FEATURE] 支持算子血缘

Open
#3,480 7 comments 1 reaction 0 assignees View on GitHub
kind:feature priority:major
Dominant language
Scala
Stars
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Forks
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PR merge metrics
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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

Open the contributing 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

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