import type { PreparedFilterGroup, PreparedQuery, PreparedWhereFilter } from './types/index.js';
/**
 * Simplifies a query by removing redundant parts
 * Performs changes in place (assuming prepareQuery has already created a copy)
 */
export declare function simplifyQuery(query: PreparedQuery): PreparedQuery;
/**
 * Filter groups can be overly expressive and contain redundant information. This function simplifies the filter group to a more concise form.
 * If the filter group contains only one filter, it will return that filter.
 * If the filter group contains no filters, then undefined is returned and the filter can be dropped.
 */
export declare function simplifyFilterGroup(filterGroup: PreparedFilterGroup): PreparedWhereFilter | undefined;