questdb
Data Warehouses & AnalyticsAn open‑source, high‑performance time‑series database with low‑latency ingestion and dynamic SQL queries
Features
- Blazingly fast ingestion (single events to millions/sec)
- Low‑latency, time‑series‑extended SQL (ASOF JOIN, WINDOW JOIN, etc.)
- Multi‑tier storage: WAL → native columnar → Parquet on object storage
Recent releases
View all 20 releases →
Review required
9.4.1
Breaking risk
Breaking upgrade
SQL fuzzer + functions + MVs + Parquet + QWP
9.3.5
Breaking risk
Breaking changes
- SAMPLE BY timezone bucket alignment: Sub-day buckets now uniformly spaced in UTC during DST transitions; FROM/TO boundaries interpreted as local time
Notable features
- Lateral joins with subquery correlation
- SQL-standard UNNEST for array expansion
- Statistical window functions: stddev_pop/samp, var_pop/samp, covar_pop/samp, corr
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About
Stars
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Forks
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Languages
Java
Rust
C++
Install & Platforms
Install via
docker
brew
Platforms
linux
macos
windows
Alternative to
InfluxDB
Kdb+
TimescaleDB
MongoDB