QuestDB Releases

GET https://watchchangelog.com/api/v1/entries?source=questdb.releases

{
  "source": "questdb.releases",
  "vendor": "QuestDB",
  "id": "tag:github.com,2008:Repository/19257422/10.0.1",
  "published_at": "2026-08-24T13:55:02.000Z",
  "title": "10.0.1",
  "url": "https://github.com/questdb/questdb/releases/tag/10.0.1",
  "summary": "QuestDB 10.0.1 QuestDB 10.0.1 is a maintenance release that builds on 10.0.0 with improvements across SQL, QWP, Live Views, DECIMAL, storage, and the Web Console. Expanded fuzz, fault-injection, and concurrency coverage strengthens a number of less-common execution and failure paths. The release also improves high-cardinality window queries and Live View refreshes, streams eligible ordered UNION ALL queries without a full sort, reduces idle-worker allocation on JDK 24+, and bundles Web Console 2.0.3. For any questions or feedback, please join us on Slack or on Discourse . See also our prettier release notes page. Highlights Reliability and protocol hardening QWP table-update caching now follows table lifecycle and schema changes more closely , including DROP /recreate, rename, and column-type changes. Durable acknowledgement accounting also covers transactions committed at the append-time row threshold. #7383 , #7484 Partition squash and POSTING-index lifecycle paths gain additional concurrency and I/O handling , improving behavior around open partitions, concurrent writers, and rollback. #7487 , #7485 , #7382 Column type conversion now reports low-disk-space failures cleanly , and metadata compatibility improves for tables created before QuestDB 6.1. #7537 , #7476 Faster and more capable windows and Live Views Compatible window functions over the same PARTITION BY key can now share one map and one probe per row. The largest gains occur at high key cardinality: in the PR benchmark, a three-function bounded window over one million keys ran about 2.1x faster and retained 65 MiB less native memory on the cached path. The optimization is controlled by the reloadable cairo.sql.window.map.fusion.enabled setting. #7515 The same change substantially reduces Live View refresh, seal, restart, and transient-memory costs. In the reported 3.8-million-account benchmark, per-batch refresh fell from 4.43 seconds to 0.48 seconds and restart from 79.7 seconds to 3.86 seconds. Live Views can also project aliases and scalar expressions around window functions, with broader coverage for bounded RANGE frames, extreme timestamps, replay, and NOCACHE symbols. Additional hardening makes view startup, routine base-table DDL, and concurrent refresh behavior more consistent. #7465 , #7486 , #7512 DECIMAL coverage and interoperability Expanded DECIMAL coverage improves arithmetic and scale handling, NULL consistency, casts, bind variables, WAL replay, ILP, CSV import/export, Parquet filtering, and storage. #7452 ALTER TABLE ... ALTER COLUMN ... TYPE now converts between DECIMAL and FLOAT/DOUBLE in both directions. For Parquet-backed data, QuestDB converts the affected partitions to native format first. SQL, protocols, and Web Console Ordered UNION ALL can stream through a merge operator instead of sorting. Eligible full scans ran about 8-9x faster in the PR benchmark, while LIMIT queries can stop without materializing and sorting the full union. Branches must expose compatible designated timestamps and scan order. #7348 An all-SYMBOL UNION or UNION ALL now returns SYMBOL . HTTP metadata and CTAS preserve the type instead of widening it to STRING; PGWire continues to expose both through the VARCHAR OID. #7397 Scalar subqueries, indexed LATEST ON , lateral aggregates, large GROUP BY maps, VARCHAR date parsing, and SHOW CREATE DATABASE subqueries gain broader plan and edge-case coverage. #7388 , #7481 , #7432 , #7434 , #7417 , #7384 PGWire result framing now handles additional ARRAY, IPv4, and GEOHASH format combinations. ILP TCP authentication handling is more robust for malformed input, and current_user() / session_user() report the authenticated principal. #7469 , #7488 , #7273 Web Console 2.0.3 adds light/dark themes, notebook-level auto-refresh with per-cell overrides, improved grid sizing and editor settings, and OIDC and terminology fixes. #7458 , #7533 Changelog Features feat(sql): return SYMBOL from a UNION over symbol columns by @glasstiger in #7397 Performance perf(core): reduce GC pressure from idle workers on JDK 24+ by @kafka1991 in #7459 perf(sql): speed up window queries and fix wrong results in windows and live views by @puzpuzpuz in #7515 perf(sql): stream ordered UNION ALL without sorting by @brunocalza in #7348 Fixes fix(core): load view definitions before the engine publishes READY by @RaphDal in #7465 fix(sql): fix scalar subquery predicates and timestamp interval pruning by @nwoolmer in #7388 fix(core): fix crash when reading tables created before QuestDB 6.1 by @nwoolmer in #7476 fix(pgwire): fix queries hanging until the connection times out by @jerrinot in #7469 fix(sql): rebind bind variable in deferred indexed LATEST ON by @nwoolmer in #7481 fix(sql): handle conservative ASCII hints in VARCHAR date parsing by @jerrinot in #7417 fix(core): fix live views turning invalid after routine base table DDL by @bluestreak01 in #7486 fix(qwp): reject oversized table counts by @jerrinot in #7493 fix(core): fix covering-index reads on Windows by @glasstiger in #7499 fix(ilp): stop ILP TCP authentication failures escaping as unhandled errors by @bluestreak01 in #7488 fix(core): prevent invalid native-memory writes by @jerrinot in #7453 chore(core): harden decimal type handling by @RaphDal in #7452 fix(core): stop POSTING index close() truncating a region another writer published by @bluestreak01 in #7485 fix(core): prevent false live view invalidation during concurrent refresh by @bluestreak01 in #7512 fix(core): fix table suspension after a range replace removes its last partition by @puzpuzpuz in #7380 fix(sql): fix NULL results for count expressions in LEFT JOIN LATERAL by @kafka1991 in #7432 fix(core): signal restore cancellation promptly on shutdown by @jovfer in #7361 fix(qwp): fix silent row loss after DROP in the qwpudp table-update cache by @nwoolmer in #7383 fix(core): fix incorrect query results and premature memory-limit errors in large queries by @puzpuzpuz in #7434 fix(core): stop partition squash losing var-column data on the open partition by @bluestreak01 in #7487 fix(sql): fix filters on SHOW CREATE DATABASE subqueries by @nwoolmer in #7384 fix(qwp): fix durable acks issued before the WAL upload is confirmed by @bluestreak01 in #7484 fix(core): fix the web console showing \"admin\" instead of the authenticated user by @glasstiger in #7273 fix(core): fix a POSTING index crash on rollback after a value-file I/O error by @puzpuzpuz in #7382 fix(core): fix crash on column type conversion under low disk space by @ideoma in #7537 Web Console chore(ui): upgrade web console to 2.0.2 by @emrberk in #7458 chore(ui): upgrade web console to 2.0.3 by @emrberk in #7533 Full Changelog : 10.0.0...10.0.1",
  "tags": [
    "QuestDB",
    "questdb.releases",
    "database",
    "timeseries",
    "open-source"
  ]
}