AlloyDB supports the tds_fdw extension, which provides a foreign data wrapper

## Feature AlloyDB supports the `tds_fdw` extension, which provides a foreign data wrapper for accessing databases—such as Microsoft SQL Server and Sybase—that use the Tabular Data Stream (TDS) protocol. For more information, see [Supported database extensions](https://cloud.google.com/alloydb/docs/reference/extensions). This feature is[generally available](https://cloud.google.com/products#product-launch-stages) (GA).