import IOperationBackend from './IOperationBackend';
import { ExecuteStatementOptions, TypeInfoRequest, CatalogsRequest, SchemasRequest, TablesRequest, TableTypesRequest, ColumnsRequest, FunctionsRequest, PrimaryKeysRequest, CrossReferenceRequest } from './IDBSQLSession';
import Status from '../dto/Status';
import InfoValue from '../dto/InfoValue';
/**
 * What a `DBSQLSession` needs from its backend. Returned by
 * `IBackend.openSession()`. Lifecycle tied to a single `DBSQLSession`.
 */
export default interface ISessionBackend {
    /** Session identifier. */
    readonly id: string;
    /** Returns general information about the data source. */
    getInfo(infoType: number): Promise<InfoValue>;
    /** Executes DDL/DML statements. */
    executeStatement(statement: string, options: ExecuteStatementOptions): Promise<IOperationBackend>;
    /** Information about supported data types. */
    getTypeInfo(request: TypeInfoRequest): Promise<IOperationBackend>;
    /** List of catalogs. */
    getCatalogs(request: CatalogsRequest): Promise<IOperationBackend>;
    /** List of schemas. */
    getSchemas(request: SchemasRequest): Promise<IOperationBackend>;
    /** List of tables. */
    getTables(request: TablesRequest): Promise<IOperationBackend>;
    /** List of supported table types. */
    getTableTypes(request: TableTypesRequest): Promise<IOperationBackend>;
    /** Full column information for a table. */
    getColumns(request: ColumnsRequest): Promise<IOperationBackend>;
    /** Information about a function. */
    getFunctions(request: FunctionsRequest): Promise<IOperationBackend>;
    /** Primary keys of a table. */
    getPrimaryKeys(request: PrimaryKeysRequest): Promise<IOperationBackend>;
    /** Foreign-key relationships between two tables. */
    getCrossReference(request: CrossReferenceRequest): Promise<IOperationBackend>;
    /** Close the session. Idempotent. */
    close(): Promise<Status>;
}