import { SelectQuery } from "../models/SelectQuery";
/**
 * CTENormalizer is responsible for normalizing Common Table Expressions (CTEs) within SQL queries.
 * It collects all CTEs from various parts of the query and consolidates them into a single WITH clause
 * at the root level of the query.
 *
 * This implementation uses:
 * 1. CommonTableCollector - to gather all CTEs from the query structure
 * 2. WithClauseDisabler - to remove all original WITH clauses from the query
 * 3. CTENameConflictResolver - to resolve name conflicts among CTEs and sort them properly
 */
export declare class CTENormalizer {
    /**
     * Private constructor to prevent instantiation of this utility class.
     */
    private constructor();
    /**
     * Normalizes a SQL query by consolidating all CTEs into a single WITH clause
     * at the root level of the query.
     *
     * @param query The query to normalize
     * @returns A new normalized query with all CTEs at the root level
     */
    static normalize(query: SelectQuery): SelectQuery;
}