/**
 * Tool: get_query_statistics
 * Returns query and I/O statistics for a specific table
 */
export interface GetQueryStatisticsInput {
    schema: string;
    table: string;
    limit?: number;
}
export interface TableStatistics {
    seq_scan: number;
    seq_tup_read: number;
    idx_scan: number;
    idx_tup_fetch: number;
    n_tup_ins: number;
    n_tup_upd: number;
    n_tup_del: number;
    n_tup_hot_upd: number;
    n_live_tup: number;
    n_dead_tup: number;
    last_vacuum: string | null;
    last_autovacuum: string | null;
    last_analyze: string | null;
    last_autoanalyze: string | null;
    vacuum_count: number;
    autovacuum_count: number;
    analyze_count: number;
    autoanalyze_count: number;
}
export interface IOStatistics {
    heap_blks_read: number;
    heap_blks_hit: number;
    idx_blks_read: number;
    idx_blks_hit: number;
    toast_blks_read: number;
    toast_blks_hit: number;
    tidx_blks_read: number;
    tidx_blks_hit: number;
    cache_hit_ratio: number;
}
export interface IndexStatistics {
    index_name: string;
    idx_scan: number;
    idx_tup_read: number;
    idx_tup_fetch: number;
    idx_blks_read: number;
    idx_blks_hit: number;
    size: string;
}
export interface QueryStatisticsOutput {
    schema: string;
    table: string;
    table_statistics: TableStatistics;
    io_statistics: IOStatistics;
    index_statistics: IndexStatistics[];
    bloat_estimate: {
        dead_tuple_percent: number;
        estimated_bloat: string;
    };
}
/**
 * Gets query and I/O statistics for a table
 */
export declare function getQueryStatistics(input: GetQueryStatisticsInput): Promise<QueryStatisticsOutput>;
//# sourceMappingURL=getQueryStatistics.d.ts.map