Cannot find implementation of GetUInt* methods in reader.

[MaxLevs]

This document declarates about implemented support of unsigned types with certain get methods such as GetUInt32() etc. In fact, there are no implementations of this methods.

[SergeyMirvoda]

According to the document, you should use GetFieldValue<T>(int ordinal) method
with uint type for UInt32 and friends
something like this: GetFieldValue<uint>(0)

Here is small sample

 static async Task Main(string[] args)
        {
                var sb = new ClickHouseConnectionStringBuilder();
                sb.Host = "192.168.121.143";
                using var conn = new ClickHouseConnection(sb);
                await conn.OpenAsync();

                var r = await conn.CreateCommand("SELECT cast(123 AS UInt32)").ExecuteReaderAsync();
                while(await r.ReadAsync())
                {
                        var v = r.GetFieldValue<uint>(0);
                        Console.WriteLine($"uint value {v}. {v.GetType()}");

                }
        }

output:

uint value 123. System.UInt32   

As for additional methods, @victor-sushko can we add them, or remove them from the documentation?

[victor-sushko]

As for additional methods, @victor-sushko can we add them, or remove them from the documentation?

I think it's better to add these methods to ClickHouseDataReader.
There are also no methods for reading IPAddress and BigInteger. They can be added as well.