QuestDB
ELI5 — The Vibe Check
QuestDB is the time-series database that said 'hold my beer' and started ingesting millions of rows per second on a single machine. It uses memory-mapped files and a columnar layout designed specifically for time-stamped data. It's like a sports car for time-series — raw speed over everything.
Real Talk
A high-performance, column-oriented time-series database designed for fast ingestion and SQL queries over time-stamped data. It uses memory-mapped storage, SIMD instructions, and a custom SQL dialect with time-series extensions to achieve millions of rows per second ingestion on commodity hardware.
When You'll Hear This
"QuestDB ingests 1.4 million rows per second from our financial trading data feed." / "We chose QuestDB over InfluxDB for its SQL support and raw write performance."
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