apache/pinot

Property based query testing

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#8,704 opened on May 14, 2022

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Description

Given the same data, schema, the same query against two different table configurations should always produce the same result. Generating table configurations over a schema and checking this invariant for generated random data would help to find bugs in operators and index implementations.

Contributor guide

Research direction
Implement property based testing for query consistency across different table configurations using a framework like jqwik. Start by defining a schema and random data generation, then compare query results between two table setups (e.g., different indexes) to detect discrepancies.
Tech stack
java
Domain
backenddatabasetesting qa
Issue type
Test
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaDatabase testing concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40