import type { CommonLogger } from '@naturalcycles/js-lib/log';
import type { AnyObject } from '@naturalcycles/js-lib/types';
import type { JsonSchema } from '@naturalcycles/nodejs-lib/ajv';
export interface MySQLTableStats {
    Field: string;
    Type: string;
    Null: string;
}
export interface MySQLSchemaOptions {
    /**
     * @default 'InnoDB'
     */
    engine?: string;
}
/**
 * It currently skips nullability and declares everything as "DEFAULT NULL".
 */
export declare function jsonSchemaToMySQLDDL(table: string, schema: JsonSchema<any>, opt?: MySQLSchemaOptions): string;
export declare function mysqlTableStatsToJsonSchemaField<T extends AnyObject = any>(table: string, stats: MySQLTableStats[], logger: CommonLogger): JsonSchema<T>;
/**
 * Because MySQL doesn't support `.` in field names and escapes them as tableName + fieldName.
 *
 * @param name
 */
export declare function mapNameToMySQL(name: string): string;
export declare function mapNameFromMySQL(name: string): string;