import { ColumnRefNode } from '../ast/column-ref.js';
import { FromNode } from '../ast/from.js';
import { JoinNode, type JoinType } from '../ast/join.js';
import { ExprNode } from '../ast/node.js';
type TableArg = string | string[] | FromNode;
/** Options for a JOIN operation. */
interface JoinOptions {
    /** The join type (INNER, LEFT, RIGHT, FULL, SEMI, ANTI). */
    type?: JoinType;
    /**
     * The join condition as a boolean expression.
     * If specified, the *using* option must not be specified.
     */
    on?: ExprNode;
    /**
     * The join condition as an array of columns to match.
     * The column names must exist in both tables.
     * If specified, the *on* option must not be specified.
     */
    using?: (string | ColumnRefNode)[];
}
/**
 * Create a new cross (cartesian product) join.
 * @param left The left table to join.
 * @param right The right table to join.
 */
export declare function cross_join(left: TableArg, right: TableArg): JoinNode;
/**
 * Create a new POSITIONAL join.
 * @param left The left table to join.
 * @param right The right table to join.
 */
export declare function positional_join(left: TableArg, right: TableArg): JoinNode;
/**
 * Create a new join.
 * @param left The left table to join.
 * @param right The right table to join.
 * @param options The join options.
 */
export declare function join(left: TableArg, right: TableArg, options?: JoinOptions): JoinNode;
/**
 * Create a new ASOF join.
 * @param left The left table to join.
 * @param right The right table to join.
 * @param options The join options.
 */
export declare function asof_join(left: TableArg, right: TableArg, options: JoinOptions): JoinNode;
export {};
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