Design Documents

Design documents are grouped by the milestone in which they were introduced. The current milestone sits directly under this directory and holds live working documents; new design work must be added there when it is introduced. When a milestone ships, its directory moves into archive/.

Current milestone — 0.12.0

• Trace sampling before lifecycle migration
• Measure QL Catalog B: core SQL implementation plan
• Tag aggregation and time bucketing in the measure query engine
• Data export and import
• Docker-canonical build and license generation
• Measure batch v2: reference-counted, columnar data unit
• Measure scan path v2: streaming series windows and a time-ordered merge
• Proto-free BydbQL measure planning with a reusable plan cache
• Measure QL: remaining gaps and order of work
• Aggregating measures and materialized views
• Streaming API: progressive queries and acknowledged write streams

The native inverted-index replacement design shipped and its legacy engine dependency has since been fully removed; see archive/0.12.0/native-inverted-index/README.md (archived ahead of the rest of 0.12.0, which has not shipped yet).

Shipped milestones

See archive/ for 0.11.0 and earlier.