These exceptions are annoying me also ...
I will try to take a look if we are usign exceptions for flow control.

On Nov 18, 3:48 am, jimmyhoum <[EMAIL PROTECTED]> wrote:
> I'm testing linq to mysql
> the source code from svn
>
> MyContext t = new MyContext(new MySql.Data.MySqlClient.MySqlConnection
> ("server=localhost; user id=root; password=sa; database=test;
> pooling=true;"));
>         t.Log = Console.Out;
>         var o = from a in t.Users select a;
>         foreach (var g in o)
>         {
>         }
>
> and one query build Exception  is:
> A first chance exception of type 'System.ArgumentException' occurred
> in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.ArgumentException' occurred
> in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.ArgumentException' occurred
> in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.ArgumentException' occurred
> in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.ArgumentException' occurred
> in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.ArgumentException' occurred
> in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.ArgumentException' occurred
> in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.ArgumentException' occurred
> in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
> A first chance exception of type 'System.InvalidOperationException'
> occurred in System.Core.dll
> A first chance exception of type 'System.ArgumentException' occurred
> in DbLinq.DLL
>
> it isn't my copy,that's one query's output
> and query time >= 2 seconds
> Users  table only 2 rows
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