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Target customers: all users. Features released: Babelfish supports Tabular Data Stream (TDS), the SQL Server wire-protocol, and T-SQL. You can migrate the database of your application from an SQL Server instance to an ApsaraDB RDS for PostgreSQL instance for which Babelfish is enabled only by modifying a few lines of code. You do not need to switch database drivers or rewrite SQL statements. Babelfish is suitable for the following scenarios: 1) You want to reduce the SQL Server license costs by using a single ApsaraDB RDS instance to process data from both PostgreSQL and SQL Server databases. 2) You want to migrate data from an SQL Server database to a PostgreSQL database without spending time or efforts in modifying code. 3) You want to use the open source plug-in libraries of PostgreSQL, such as the PostGIS plug-in for spatio-temporal data analysis and the TimescaleDB plug-in for time series data analysis.