David Snelling
f024e56ee7
Add a write-time incremental aggregation engine that maintains running
totals on every add/update/delete for O(1) read performance. Integrates
into brain.find({ aggregate }) for a unified query API.
Core features:
- AggregationIndex with defineAggregate()/removeAggregate() API
- Five aggregation operations: SUM, COUNT, AVG, MIN, MAX
- GROUP BY with multiple dimensions including time windows
- Time window bucketing: hour, day, week, month, quarter, year, custom
- Materialization of results as NounType.Measurement entities
- Debounced persistence of definitions and state to storage
- Definition change detection via FNV-1a hashing with auto-rebuild
- Infinite loop prevention for materialized entities
- 'aggregation' plugin provider key for native acceleration
- Lazy initialization (created on first defineAggregate() call)
- 73 tests (unit + integration) covering all functionality
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
8 lines
296 B
TypeScript
8 lines
296 B
TypeScript
/**
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* Aggregation Engine - barrel export
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*/
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export { AggregationIndex } from './AggregationIndex.js'
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export { AggregateMaterializer } from './materializer.js'
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export type { MaterializerBrainAccess } from './materializer.js'
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export { bucketTimestamp, parseBucketRange } from './timeWindows.js'
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