export type RdfStatisticsDimensionKind = 'graph' | 'predicate' | 'subject' | 'object' | 'source';
export type RdfStatisticsPairKind = 'SP' | 'SO' | 'PS' | 'PO' | 'OS' | 'OP' | 'GP';
export interface RdfStatisticsPodSnapshot {
    podScopeId: string;
    factsVersion: number;
    exactStatsVersion: number;
    plannerStatsVersion?: number;
    plannerDirty: boolean;
    hasUnscopedFacts: boolean;
    quadCount: number;
    graphCount: number;
    predicateCount: number;
    subjectCount: number;
    objectCount: number;
    sourceCount: number;
    exact: boolean;
}
export interface RdfStatisticsDimensionSnapshot {
    quadCount: number;
    distinctLeft: number;
    distinctRight: number;
}
export interface RdfStatisticsPairSnapshot {
    quadCount: number;
}
export interface RdfStatisticsStore {
    podScopeForGraph(graphId: number): Promise<string | undefined>;
    podSnapshot(podScopeId: string): Promise<RdfStatisticsPodSnapshot | undefined>;
    dimension(podScopeId: string, kind: RdfStatisticsDimensionKind, key: number): Promise<RdfStatisticsDimensionSnapshot | undefined>;
    pair(podScopeId: string, kind: RdfStatisticsPairKind, leftKey: number, rightKey: number): Promise<RdfStatisticsPairSnapshot | undefined>;
}