/**
 * @license
 * Copyright 2025 Steven Roussey <sroussey@gmail.com>
 * SPDX-License-Identifier: Apache-2.0
 */
export interface RegisteredIndex {
    readonly name: string;
    readonly keyPath: readonly string[];
}
export interface PickCoveringIndexInput {
    readonly table: string;
    readonly indexes: readonly RegisteredIndex[];
    readonly criteriaColumns: readonly string[];
    readonly orderByColumns: ReadonlyArray<{
        readonly column: string;
        readonly direction: "ASC" | "DESC";
    }>;
    readonly selectColumns: readonly string[];
    readonly primaryKeyColumns: readonly string[];
}
export interface PickedIndex {
    readonly name: string;
    readonly keyPath: readonly string[];
    /** true if the keypath order is reverse of orderBy direction (caller uses "prev" cursor) */
    readonly reverseDirection: boolean;
}
/**
 * Pick the first registered index whose keypath:
 *   1. starts with all `criteriaColumns` (as a prefix, in any order),
 *   2. then has the `orderByColumns` immediately after, in matching direction or reversed,
 *   3. and contains every `selectColumns` value somewhere in the keypath
 *      (primary-key columns are considered covered for free, e.g. via cursor.primaryKey).
 *
 * Throws {@link CoveringIndexMissingError} on no match.
 */
export declare function pickCoveringIndex(input: PickCoveringIndexInput): PickedIndex;
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