Release highlights

This release adds Prometheus Alertmanager support, new counters in the Prometheus endpoint for memory information, automatic query timeout, Monaco as the new SQL editor for QuestDB's web interface, and various UI additions. Alongside new features, this release fixes bugs in binary search and improves stability relating to filesystem sync and crashes when using ILP. These features and fixes enhance the system's usability, flexibility, and stability.

What is new

• CORE: expose memory counters to Prometheus endpoint (#1630) Bolek Ziobrowski
• LOG: add critical level to be used for alerting (#1663)
• LOG: log writer for Prometheus Alertmanager (#1588)
• SQL: process ALTER TABLE SQL when writer is busy in ILP (#1504)
• SQL: enhance type compatibility check to extend numeric conversions (#1627) Bolek Ziobrowski
• SQL: query execution timeout (#1637)
• SQL: specify index block size in alter table alter column add index (#1628) Bolek Ziobrowski
• SQL: SQL for bulk insert (#1603) mkaruza
• UI: change SQL editor to monaco - vscode core (#1610)
• UI: add column type to grid (#1621)
• UI: collapsible table schema panel (#1593) Enol

What we fixed

• CORE: double and float parsing #1615 (#1626) Bolek Ziobrowski
• CORE: fixed binary search bugs (#1650)
• O3: fixed crash, which is to do with incorrectly sizing input data (#1654)
• ILP: handling of duplicate fields and tags in a message (#1213)
• ILP: handling of duplicate timestamps (#1608)
• ILP: race condition between ILP and DDL via HTTP or PG (#1618)
• ILP: reject null fields when table does not exist (#1686)
• ILP: sanitize table name to avoid FS corruption (#1605)
• HTTP: allow single row csv import (#1655)
• HTTP: fixed serialization of float infinity to json (#1622)
• SQL: fixed support for UTF8-encoded table names and columns in metadata (#1623)
• SQL: tweak hash function to speed up FastMap (#1647)
• SQL: ALTER TABLE ADD COLUMN parse error #1612 (#1634) Bolek Ziobrowski
• SQL Column alias 'time' is now supported (#1602) mkaruza
• SQL: allow column names with spaces (#1617)
• UI: update favicon.ico url (#1606) Eric Schultz