import { Expression, Select } from "squel";
import { IsotopeOptions } from "..";
/**
 * Isotope SQL query builder
 *
 * Under the hood the squel query builder is used, but methods are proxied to
 * accommodate for the limited feature set supported by SimpleDB.
 *
 * @template T - Data type
 */
export declare class IsotopeSelect<T extends {}> {
    protected options: IsotopeOptions<T>;
    protected query: Select;
    /**
     * Initialize a SQL query expression builder
     *
     * @param options - Options
     * @param query - Squel instance
     */
    constructor(options: IsotopeOptions<T>, query?: Select);
    /**
     * Add WHERE clause
     *
     * Monkey-patch where() method if strings are formatted as JSON
     *
     * @param condition - Condition expression
     * @param args - Additional arguments for parameter substitution
     *
     * @return Instance
     */
    where(condition: string | Expression, ...args: any[]): this;
    /**
     * Add ORDER BY clause
     *
     * @param field - Sort field
     * @param direction - Sort direction
     *
     * @return Instance
     */
    order(field: string, direction?: "asc" | "desc"): this;
    /**
     * Add LIMIT clause
     *
     * @param count - Number of records
     *
     * @return Instance
     */
    limit(count: number): this;
    /**
     * Create a string representation of the SQL query
     *
     * @return SQL query string
     */
    toString(): string;
}