/**
 * Portable relational identifier rules shared by typegen and every server
 * runtime. PostgreSQL truncates identifiers after 63 UTF-8 bytes, while the
 * relational Syncular projection reserves its own table/column namespace.
 *
 * Keeping this validation in core prevents a generated schema from passing
 * typegen and then failing later when a server or testkit compiles it.
 */
export declare const PORTABLE_RELATIONAL_IDENTIFIER_MAX_BYTES = 63;
export type PortableRelationalIdentifierFailure = 'empty' | 'reserved-prefix' | 'too-long';
export declare class PortableRelationalIdentifierError extends Error {
    readonly kind: string;
    readonly identifier: string;
    readonly failure: PortableRelationalIdentifierFailure;
    readonly byteLength: number;
    readonly code = "schema.invalid_identifier";
    constructor(kind: string, identifier: string, failure: PortableRelationalIdentifierFailure, byteLength: number);
}
/** Validate one identifier against the strictest supported relational host. */
export declare function validatePortableRelationalIdentifier(kind: string, identifier: string): void;