import type { PostgresRdfSqlExecutor } from './PostgresRdfSqlExecutor';
import type { RdfStatisticsDimensionKind, RdfStatisticsDimensionSnapshot, RdfStatisticsPairKind, RdfStatisticsPairSnapshot, RdfStatisticsPodSnapshot, RdfStatisticsStore } from './RdfStatisticsStore';
export declare class PostgresRdfStatisticsStore implements RdfStatisticsStore {
    private readonly executor;
    constructor(executor: PostgresRdfSqlExecutor);
    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>;
}