IsIn filter doesnt support optional values

Hi there,

we have some optional table elements and we want to use the IsIn filter on them.

In our query is concerncostcentrals.Zuordnung a optional string parameter

let branches = [Some "EZ"; Some "BGA"; Some "KW"]
let! data =
        select {
            for concerncostcentrals in enmsSichtKstKonzern do
            where ( isIn (concerncostcentrals.Zuordnung) branches )
        }
        |> conn.SelectAsync<dbo.EnmsSicht_KstKonzern>

This query the will fail with an No mapping exists from object type Microsoft.FSharp.Core.FSharpOption1[[System.String, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]] to a known managed provider native type.` exception

Any idea how we can get that working?

Thanks in advance!

[Dzoukr]

Released as v2.4.1

[tforkmann]

Merci guys! You are amazing!