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Create a comparator utility to compare 2 parquet files and give a clear message for the differences

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#2,950 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

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

Research direction

No file, test, or entry point is named; start by locating the existing Parquet Java modules and test conventions before designing the new comparator module. Use the stated regression-testing scenario to define comparison behavior, including sorting elements in lists. Done means two Parquet files can be compared and differences are reported in a clear message.

Written by the indexing model from the issue text.

Description

Describe the usage question you have. Please include as many useful details as possible.

We have been using Parquet files in production and would like an automated process for regression testing.

Requirements

  1. Sort elements in lists before comparison.
Component(s)

Build a new module.

Dominant language
Java
Stars
3.1k
Forks
1.6k
Avg merge
6d 16h
Merged PRs (30d)
36

Contributor guide

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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