public static IEnumerable <string> SelectAllDistinctKeys(this IEnumerable <BsonDocument> documents,
FieldSortOrder sortOrder = FieldSortOrder.Original)
{
if (documents == null)
{
return(Enumerable.Empty <string>());
}
var result = documents
.SelectMany(p => p.Keys)
.Distinct(StringComparer.InvariantCulture);
if (sortOrder == FieldSortOrder.Alphabetical)
{
result = result.OrderBy(_ => _);
}
return(result);
}
public IReadOnlyList <string> GetDistinctKeys(FieldSortOrder sortOrder = FieldSortOrder.Original)
{
return(Items.SelectAllDistinctKeys(sortOrder).ToList());
}
