import { SqlComponent } from "../models/SqlComponent";
export declare class DDLGeneralizer {
    /**
     * Generalizes DDL statements by moving constraints from CREATE TABLE to ALTER TABLE statements.
     * This normalizes the DDL for easier comparison.
     *
     * @param ast List of SQL components (DDL statements)
     * @returns Generalized list of SQL components
     */
    static generalize(ast: SqlComponent[]): SqlComponent[];
    private static splitCreateTable;
    private static columnToTableConstraint;
}