/**
 * @noy-db/hub/aggregate — opt-in aggregation + groupBy service.
 *
 * @category capability
 *
 * Groups every file whose reason-for-existing is record reduction:
 *   - `aggregation` (`Aggregation<R>`, `reduceRecords`, `buildLiveAggregation`)
 *   - `groupby` (`GroupedQuery`, `GroupedAggregation`, cardinality guards)
 *   - `reducers` (`count`, `sum`, `avg`, `min`, `max` factories)
 *
 * The root barrel (`@noy-db/hub`) and the `@noy-db/hub/query` subpath
 * continue to re-export the same symbols for backward compatibility
 * with consumers written before the relocation. New code should
 * prefer this subpath.
 */
export { withAggregate } from './active.js';
export type { AggregateStrategy } from './strategy.js';
export { Aggregation, reduceRecords, buildLiveAggregation } from './aggregation.js';
export type { AggregateSpec, AggregateResult, AggregationUpstream, LiveAggregation, } from './aggregation.js';
export { GroupedQuery, GroupedQueryN, GroupedAggregation, groupAndReduce, resetGroupByWarnings, GROUPBY_WARN_CARDINALITY, GROUPBY_MAX_CARDINALITY, } from './groupby.js';
export type { GroupedRow, GroupedRowN } from './groupby.js';
export { count, sum, avg, min, max, moneySum, moneyMin, moneyMax, reducerBuilder } from './reducers.js';
export type { Reducer, ReducerOptions, ReducerBuilder } from './reducers.js';