import duckdb from '@duckdb/node-bindings';
import { DuckDBDataChunk } from './DuckDBDataChunk';
import { DuckDBTableFunctionBindInfo } from './DuckDBTableFunctionBindInfo';
import { DuckDBTableFunctionInfo } from './DuckDBTableFunctionInfo';
import { DuckDBTableFunctionInitInfo } from './DuckDBTableFunctionInitInfo';
import { DuckDBType } from './DuckDBType';
export type DuckDBTableBindFunction = (bindInfo: DuckDBTableFunctionBindInfo) => void;
export type DuckDBTableInitFunction = (initInfo: DuckDBTableFunctionInitInfo) => void;
/**
 * Produces one chunk of the scan per call.
 *
 * Set `outputDataChunk.rowCount` before writing, then write that many rows to
 * each column vector. A row count of zero reports that the scan is finished, so
 * a function that never sets zero never terminates.
 */
export type DuckDBTableMainFunction = (functionInfo: DuckDBTableFunctionInfo, outputDataChunk: DuckDBDataChunk) => void;
export declare class DuckDBTableFunction {
    readonly table_function: duckdb.TableFunction;
    constructor();
    static create({ name, bindFunction, initFunction, localInitFunction, mainFunction, parameterTypes, namedParameterTypes, supportsProjectionPushdown, extraInfo, }: {
        name: string;
        bindFunction: DuckDBTableBindFunction;
        initFunction: DuckDBTableInitFunction;
        localInitFunction?: DuckDBTableInitFunction;
        mainFunction: DuckDBTableMainFunction;
        parameterTypes?: readonly DuckDBType[];
        namedParameterTypes?: Readonly<Record<string, DuckDBType>>;
        supportsProjectionPushdown?: boolean;
        extraInfo?: object;
    }): DuckDBTableFunction;
    destroySync(): void;
    setName(name: string): void;
    setBindFunction(bindFunction: DuckDBTableBindFunction): void;
    setInitFunction(initFunction: DuckDBTableInitFunction): void;
    setLocalInitFunction(localInitFunction: DuckDBTableInitFunction): void;
    setMainFunction(mainFunction: DuckDBTableMainFunction): void;
    addParameter(parameterType: DuckDBType): void;
    addNamedParameter(name: string, parameterType: DuckDBType): void;
    setSupportsProjectionPushdown(pushdown: boolean): void;
    setExtraInfo(extraInfo: object): void;
}