import { IDatabaseConnection } from './IDatabaseConnection';
import { IQueryable } from './IQueryable';
export declare abstract class Query<TQueryParameters = any, TQueryResultSet = any, TQueryPostProcessedResultSet = TQueryResultSet> implements IQueryable<TQueryPostProcessedResultSet> {
    private $params;
    constructor(parameters?: TQueryParameters);
    /**
     * @returns parameters that was passed into the constructor.
     */
    getParameters(): TQueryParameters;
    /**
     * Query implementations may override this API to augment the parameters.
     *
     * @returns parameters that will be used when this query is ran.
     */
    getParametersForQuery(): Record<string, any>;
    protected abstract _getQuery(connection: IDatabaseConnection): string;
    getQuery(connection: IDatabaseConnection): string;
    /**
     * Overridable to execute statements before the main query.
     * Can be used to set session variables or create temporary tables, etc.
     *
     * @param connection
     * @returns
     */
    onPreQuery(connection: IDatabaseConnection): Promise<void>;
    /**
     * Overridable to execute statements after the main query.
     * Can be used to clean up session variables or temporary tables, etc
     *
     * Unlike {@link onPostProcess}, this hook does not provide the result set,
     * and will be invoked even if the main query produces an error.
     *
     * @since 8.3.0
     *
     * @param connection
     * @returns {void}
     */
    onPostQuery(connection: IDatabaseConnection): Promise<void>;
    /**
     * Override to augment/manipulate the returned result set.
     *
     * @deprecated - Streaming queries does not support post processing, creating a confusing API
     *
     * @param connection The connection object used for this query execution. Useful if further queries are required.
     * @param resultset The original result set
     */
    onPostProcess(connection: IDatabaseConnection, resultSet: TQueryResultSet): Promise<TQueryPostProcessedResultSet>;
    execute(connection: IDatabaseConnection): Promise<TQueryPostProcessedResultSet>;
}