import { DataTypeConfig, ReadonlyDataTypeConfig } from '@terascope/types';
import { Builder } from '../builder/index.js';
import { Column, KeyAggFn } from '../column/index.js';
export declare function buildRecords<T extends Record<string, any>>(builders: Map<keyof T, Builder<unknown>>, records: T[]): [keyof T, Builder<any>][];
export declare function distributeRowsToColumns<T extends Record<string, any>>(config: DataTypeConfig | ReadonlyDataTypeConfig, records: T[]): Column<any, keyof T>[];
export declare function concatColumnsToColumns<T extends Record<string, any>>(builders: Map<keyof T, Builder<any>>, columns: readonly Column<any, keyof T>[], offset: number): [keyof T, Builder<any>][];
export declare function columnsToDataTypeConfig<T extends Record<string, unknown>>(columns: readonly Column<unknown, keyof T>[]): DataTypeConfig;
export declare function columnsToBuilderEntries<T extends Record<string, unknown>>(columns: readonly Column<any, keyof T>[], size: number): Iterable<[keyof T, Builder]>;
export declare function processFieldFilter(indices: Set<number>, column: Column<any>, filter: (value: any) => boolean, json: boolean): void;
export declare function createColumnsWithIndices<T extends Record<string, any>>(columns: readonly Column<any, keyof T>[], indices: Iterable<number>, size: number): readonly Column<any, keyof T>[];
export declare function indicesFilterIterable(n: number, fn: (index: number) => boolean): Iterable<number>;
export declare function makeUniqueRowBuilder<T extends Record<string, any>>(builders: Map<keyof T, Builder<any>>, buckets: Set<string>, getColumnValue: (name: keyof T, i: number) => any): (row: Partial<T>, key: string, index: number) => void;
export declare function makeKeyForRow<T extends Record<string, any>>(keyAggs: Map<keyof T, KeyAggFn>, index: number): {
    row: Partial<T>;
    key: string;
} | undefined;
/**
 * Sort the columns by likelihood of the values being there,
 * this was initially created to be used in combination with isEmptyRow
*/
export declare function getSortedColumnsByValueCount(_columns: readonly Column<any, any>[]): readonly Column<any, any>[];
/**
 * Verify the a column has null fields in a
*/
export declare function isEmptyRow(columns: readonly Column<any, any>[], row: number): boolean;
export declare function splitOnNewLineIterator(data: Buffer | string): Iterable<Buffer | string>;
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