This is the Npgsql implementation of the System.Data DbDataSource abstraction (dotnet/runtime#64812).

First priority

• Basic implementation of NpgsqlDataSource #4492
• Npgsql.DependencyInjection package for DbDataSource DI integration #4503
• Integrate logging into NpgsqlDataSource #4493
• Integrate SSL callbacks into NpgsqlDataSource #4498
• Implement type mapping plugins at the NpgsqlDataSource level (and remove connection-level) #4494
  • Check the thread safety of our type handlers #3961
• NpgsqlDataSource support for password (auth token) rotation #4497
• Clean up and expose physical connection initializers #3817
• DbDataSource and multiple hosts #4321
  • Reexamine the data source API for multiple hosts #4578

Second priority

• API to specify prepared statements at the NpgsqlDataSource level #4509
• Look into implementing (non-multiplexing) connection-less commands directly via NpgsqlConnector #4516
• Reimplement multiplexing via NpgsqlDataSource.CreateCommand #4496
• Implement ClearAsync in data sources #4499
• Use NpgsqlDataSource in all tests #4572