Chang She on Why He Walked Away from Parquet to Build LanceDB @aicouncilconf
Chang She on Why He Walked Away from Parquet to Build LanceDB  @aicouncilconf
Uploaded April 2026 | Updated September 2026, 2 weeks ago
Chang She, co-founder and CEO of LanceDB, sits down with Pete Soderling ahead of AI Council SF 2026 to explain why Parquet โ€” the columnar format that's powered data engineering for the last decade โ€” couldn't handle the AI workloads his team was building.

After six months of trying to make Spark on Parquet work for large-scale autonomous vehicle data mining, Chang and his team hit two walls: random access performance (it took tens of seconds to fetch just 10-100 rows) and multimodal data storage (keeping raw data, feature data, and analytical data in sync across three systems was unsustainable in production).

In this clip, Chang shares:

- The two challenges that broke Parquet for AI workloads
- Why "physical AI today basically has the same problems"
- What he learned from interviewing 100+ ML and computer vision engineers
- Why modifying Parquet would have meant making it "no longer Parquet"
- The architectural decisions that led to building LanceDB from scratch

Catch Chang and the rest of the speaker lineup at AI Council SF, May 12โ€“14, 2026 in SOMA: aicouncil.com/sf-2026

#LanceDB #Parquet #AIInfrastructure #DataEngineering #AICouncil

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Chang She on Why He Walked Away from Parquet to Build LanceDB

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