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QuestDB

DEVOPS
Velocity5.0

High-performance time-series database for real-time analytics

questdb.io ↗

QuestDB 10.2 adds a power-loss durability mode for WAL tables.

time-seriesdurabilitysqlmarket-datagovernance
◆Current state
QuestDB 10.1 and Enterprise 4.1 were the October releases: merge-append partitions for late data, SUBSAMPLE and exact percentiles, then resource groups, audited views and OIDC for shared clusters. QuestDB 10.2 follows with a power-loss durability mode for WAL tables, GROUPING SETS, passthrough views with row-level retention and a DEDUP SKIP mode that keeps the first copy of a row. Between releases the feed runs benchmarks and how-tos, most recently live port congestion from free AIS ship data.
◆Where it's heading
Releases are filling in what a production database needs beyond raw speed: crash safety, broader SQL and data retention controls. The content keeps the market-data focus while reaching into other streams such as ship tracking.
◆Prediction
Expect another 10.x release within weeks, likely more SQL coverage, while Enterprise picks up the retention and durability features for shared clusters.

◆Recent moves

  1. 4d ago

    QuestDB 10.2: improved power-loss durability mode

    Adds an opt-in mode that keeps WAL table writes safe through a power loss, plus GROUPING SETS, passthrough views with row-level retention and DEDUP SKIP. It moves QuestDB further from benchmark speed toward production guarantees.

    View source ↗
  2. 4d ago

    Measuring port congestion from free AIS data with NATS and QuestDB

    A build story: five Go services and NATS feed free AIS ship positions into one small QuestDB container to measure port congestion. Content marketing for a non-finance use case, with no product change.

    View source ↗
  3. 10d ago

    Market data replay for backtesting: a full day of US equities from QuestDB

    A benchmark post: one full day of US equities, 354 million events, streamed out as Arrow at up to 14 Gb/s across parallel connections. No product change ships, but it backs the market-data positioning the 10.x and Enterprise 4.x releases have been building.

    View source ↗
  4. 16d ago

    One table, three readers: QuestDB, Polars and DuckDB on the same Parquet

    A walkthrough reading one Parquet-backed table from QuestDB, Polars and DuckDB. No product change, though it clearly marks where open source stops and Enterprise begins.

    View source ↗
  5. 18d ago

    QuestDB Enterprise 4.1: governance for shared clusters

    Resource groups, audited views and OIDC for services let many teams share a cluster. It extends the 4.0 enterprise story from storage and failover into governance.

    View source ↗
  6. 22d ago

    QuestDB 10.1: less I/O for late data, and more analysis in SQL

    Merge-append partitions reduce the I/O cost of late-arriving data, and SUBSAMPLE and exact percentiles widen analysis in SQL. The release builds on 10.0 rather than changing direction.

    View source ↗