import type { SQLChunk } from "./sql.js";
import type { ColumnConfig } from "../types/index.js";
export declare const count: (column?: string | ColumnConfig) => SQLChunk<number>;
export declare const sum: (column: string | ColumnConfig) => SQLChunk<number>;
export declare const avg: (column: string | ColumnConfig) => SQLChunk<number>;
export declare const min: (column: string | ColumnConfig) => SQLChunk<any>;
export declare const max: (column: string | ColumnConfig) => SQLChunk<any>;
export declare const stddev: (column: string | ColumnConfig) => SQLChunk<number>;
export declare const variance: (column: string | ColumnConfig) => SQLChunk<number>;
export interface WindowOptions {
    partitionBy?: string | ColumnConfig | SQLChunk | Array<string | ColumnConfig | SQLChunk>;
    orderBy?: {
        column: string | ColumnConfig | SQLChunk;
        dir?: "asc" | "desc";
    } | Array<{
        column: string | ColumnConfig | SQLChunk;
        dir?: "asc" | "desc";
    }>;
}
export declare const over: <T>(agg: SQLChunk<T>, options?: WindowOptions) => SQLChunk<T>;
export declare const rowNumber: (options?: WindowOptions) => SQLChunk<number>;
export declare const rank: (options?: WindowOptions) => SQLChunk<number>;
export declare const denseRank: (options?: WindowOptions) => SQLChunk<number>;
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