/** True for a database error caused by the request (SQLSTATE class 22/23/44) -> HTTP 400; in production the detail/table/constraint context is suppressed so no row values or schema internals leak. */
export declare const isDatabaseClientError: (opts: {
    error: Error;
    isProduction: boolean;
}) => {
    isClientError: boolean;
    message?: string;
};
/** True for a transient, retryable transaction conflict (serialization failure / deadlock - SQLSTATE 40001 / 40P01) -> HTTP 409: the client can retry the same request. */
export declare const isRetryableDatabaseError: (opts: {
    error: Error;
}) => boolean;
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