Table Valued Parameters

TVP support is part of DbFun extension for Microsoft SQL Server: DbFun.MsSql.

The configuration is simple - instead of DbFun.Core.Builders namespace open DbFun.MsSql.Builders.

Then, assuming, that you have user-defined table type:

create type dbo.Tag as table (
    postId int not null,
    name nvarchar(50) not null
)

you can use TVPs either explicitly:

let updateTags = query.Sql(    
    "delete from tag where postId = @id;
    insert into tag (postId, name) select @id, name from @tags",
    Params.Int("id"), Params.TableValuedList(TVParams.Tuple<int, string>("postId", "name"), "tags", "Tag"),
    Results.Unit)

or implicitly - in this case TVP must be defined as a collection of records of type name the same, as corresponding user-defined table type name.