import { type FoldRule, type IdentKind } from "../ident/fold.js";
import type { QualifiedNameConfig } from "../ir/qualified-name.js";
export declare const MYSQL_FOLD_RULE: FoldRule;
/** schema.table, two levels — MySQL's database IS its schema
 *  (dev.mysql.com/doc/refman/8.4/en/identifier-qualifiers.html). */
export declare const MYSQL_NAME_CONFIG: QualifiedNameConfig;
/** Fold an identifier to its MySQL identity key. */
export declare function fold(raw: string, kind?: IdentKind): string;
/** Presentation twin: strip delimiters, no case change. */
export declare function displayName(raw: string): string;
export declare function foldTableName(parts: string[]): string[];
export declare function matchesSourceKey(key: string, rawPart: string): boolean;