How we made WINDOW JOIN parallel and vectorized

Software Development, Database(questdb.com)view on HackerNews

QuestDBWINDOW JOINtime-series databaseaggregationparallelismSIMDdatabase performance

Author: tosh

Date: 6/25/2026

Article Summary:

QuestDB, an open-source time-series database, introduces a new WINDOW JOIN operator for efficient aggregation over time windows in demanding workloads.