import { Column } from "anydb-sql";
import { TransactionLike } from ".";
/**
 *
 *
 * @export
 * @class DBSchema
 */
export declare class DBSchema {
    private readonly databaseURL;
    constructor(databaseURL: string);
    /**
     * Gets the name of the database for the current configuration.
     * @return {String} the name of the database for the current configuration.
     */
    getDatabaseName(): string;
    /** Gets the database dialect. */
    extractDialect(): string;
    /**
     * Checks if a column exists in a table in the current database.
     * @param tx the transaction to use to make the check query.
     * @param tableName the name of the table.
     * @param columnName the name of the column.
     * @return {Promise<boolean>} resolves to a value indicating whether the specified column exists.
     */
    columnExistsByName(tx: TransactionLike, tableName: string, columnName: string): Promise<boolean>;
    /**
     * Checks if a column exists in the current database.
     * @param tx the transaction to use to make the check query.
     * @param column the column to check.
     * @return {Promise<boolean>} resolves to a value indicating whether the specified column exists.
     */
    columnExists(tx: TransactionLike, column: Column<any>): Promise<boolean>;
}