apache / apache/paimon

[Feature] PIP-42: Local Sort And Parquet Lookup Optimizations For In Append Table

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enhancement
Dominant language
Java
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Merged PRs (30d)
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Description

### Search before asking

- [x] I searched in the [issues](https://github.com/apache/paimon/issues) and found nothing similar.

### Motivation

PIP-42 (https://cwiki.apache.org/confluence/display/PAIMON/PIP-42%3A+Local+Sort+And+Parquet+Lookup+Optimizations+In+Append+Table)

### Solution

PIP-42 (https://cwiki.apache.org/confluence/display/PAIMON/PIP-42%3A+Local+Sort+And+Parquet+Lookup+Optimizations+In+Append+Table)

### Anything else?

_No response_

### Are you willing to submit a PR?

- [ ] I'm willing to submit a PR!

Contributor guide

No contributing guide indexed for this repository

Research direction

Start by reading the linked PIP-42 proposal, which defines the requested local sort and Parquet lookup optimizations for append tables. Then identify the affected append-table implementation and its existing lookup or sorting tests. Done means the proposal's optimizations are implemented and their behavior and performance are validated.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
data-engineering, performance
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
25/100

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