--- title: "IColumnsRowset | Microsoft Docs" ms.custom: "" ms.date: "03/14/2017" ms.prod: sql ms.prod_service: "database-engine, sql-database, sql-data-warehouse, pdw" ms.reviewer: "" ms.technology: native-client ms.topic: "reference" ms.assetid: e35d37ed-dd9b-4a34-a76a-bc9251f06c4f author: markingmyname ms.author: maghan monikerRange: ">=aps-pdw-2016||=azuresqldb-current||=azure-sqldw-latest||>=sql-server-2016||=sqlallproducts-allversions||>=sql-server-linux-2017||=azuresqldb-mi-current" --- # IColumnsRowset [!INCLUDE[appliesto-ss-asdb-asdw-pdw-md](../../includes/appliesto-ss-asdb-asdw-pdw-md.md)] [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] Native Client adds the DBCOLUMN_BASETABLEINSTANCE column to IColumnsRowset::GetColumnRowset. This column returns DBTYPE_I2 and is reserved for use by Microsoft. The information in this column is subject to change in future releases. ## See Also [Interfaces (OLE DB)](https://msdn.microsoft.com/library/34c33364-8538-45db-ae41-5654481cda93)