DeleteWithOutput for Azure SQL (SqlServer.2017) generates unsupported query

Hi guys, I found a little problem (which I can bypass).

I have quite trivial code:

using var scope     = _serviceProvider.CreateScope();
var       dbContext = scope.ServiceProvider.GetRequiredService<MyDbContext>().CreateLinqToDbConnection();
var deleted = await dbContext.GetTable<CachedResult>()
                             .Where(r => r.Expired < DateTime.UtcNow)
                             .DeleteWithOutputAsync(stoppingToken);

It seems that it generates SQL query, which is not supported in Azure SQL:

--  SqlServer.2017 (asynchronously)
DECLARE @UtcNow DateTime2
SET     @UtcNow = '2022-02-28T15:42:39.9584090'

DELETE [r]
OUTPUT
        *
FROM
        [mytable].[CachedResults] [r]
WHERE
        [r].[Expired] < @UtcNow
16:55:19.818 759860 ERR #  7  LinqToDB.Data.DataConnection:() :: Error
Exception: Microsoft.Data.SqlClient.SqlException
Message  : Incorrect syntax near '*'.
   at Microsoft.Data.SqlClient.SqlCommand.<>c.<ExecuteDbDataReaderAsync>b__188_0(Task`1 result)
   at System.Threading.Tasks.ContinuationResultTaskFromResultTask`2.InnerInvoke()
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
   at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
--- End of stack trace from previous location ---
   at LinqToDB.Data.DataConnection.ExecuteReaderAsync(CommandBehavior commandBehavior, CancellationToken cancellationToken)

I think a star (*) needs to be prefixed with deleted. to have a query like:

DELETE [r]
OUTPUT
        deleted.*
FROM
        [mytable].[CachedResults] [r]
WHERE
        [r].[Expired] < @UtcNow

https://docs.microsoft.com/en-us/sql/t-sql/queries/output-clause-transact-sql?view=azuresqldb-current

I will be much appreciated to any comments.

Environment details

linq2db version: 3.6.0 Database Server: Azure SQL (SqlServer.2017) Database Provider: linq2db.EntityFrameworkCore v6.6.1 Operating system: WIN10 .NET: v6.0

[MaceWindu]

Thanks, we are planning to release reworked OUTPUT support in next release. Will make sure it works with new version

[MaceWindu]

Closing for now. Will reopen if you still have an issue with it.