rayner.notes

A long-running log on data systems — storage engines, open table formats, query execution, and the engineering culture around them. Written while building Apache Doris.

authorMingyu Chen (Rayner)

roleCo-founder / VPE, VeloDB

chairApache Doris PMC

timezoneAmerica/Los_Angeles

updated2026-04-26

~/essays ~/archive ~/tags ~/games ~/about

Games

Scan the QR code with your phone to play!

Hybrid Search Game QR Code

Hybrid Search Game

Learn how Doris hybrid search works — interactive!

— plays

JSON War Game QR Code

Battle it out with Doris VARIANT — interactive!

— plays

building Apache Doris 4.1 — hardening Iceberg V3 write path.

elsewhere github· linkedin

doris slack · discord

contact morningman@apache.org

© 2026 Mingyu Chen(Rayner) · CC BY 4.0 Built with Jekyll · schema v3 · no trackers, no newsletter