public ModelMerge(CommandProvider <TKey> commandProvider, IEnumerable <Type> modelTypes)
{
CommandProvider = commandProvider;
ModelTypes = modelTypes;
ModelTables = modelTypes.Select(t => CommandProvider.GetTableInfo(t));
var mappedColumns = modelTypes.SelectMany(t => commandProvider.GetMappedColumns(t));
ModelProperties = mappedColumns.ToLookup(pi => pi.DeclaringType);
ModelColumns = mappedColumns.Select(pi =>
{
var col = new ColumnInfo(pi);
CommandProvider.MapProviderSpecificInfo(pi, col);
return(col);
});
}