dev-npgsql/npgsql: Npgsql is the .NET data provider for PostgreSQL.

test/Npgsql.Benchmarks/GetFieldValue.cs

39 строк1 KB

Yoh Deadfall

Added support for nullable scalars

14 мар 2018, 14:20

14 мар 2018, 14:2085a6f51

using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Columns;
using BenchmarkDotNet.Configs;

namespace Npgsql.Benchmarks
{
    [Config(typeof(Config))]
    public class GetFieldValue
    {
        readonly NpgsqlConnection _conn;
        readonly NpgsqlCommand _cmd;
        readonly NpgsqlDataReader _reader;

        public GetFieldValue()
        {
            _conn = BenchmarkEnvironment.OpenConnection();
            _cmd = new NpgsqlCommand("SELECT 0, 'str'", _conn);
            _reader = _cmd.ExecuteReader();
            _reader.Read();
        }

        [Benchmark]
        public void NullableField() => _reader.GetFieldValue<int?>(0);

        [Benchmark]
        public void ValueTypeField() => _reader.GetFieldValue<int>(0);

        [Benchmark]
        public void ReferenceTypeField() => _reader.GetFieldValue<string>(1);

        [Benchmark]
        public void ObjectField() => _reader.GetFieldValue<object>(1);

        class Config : ManualConfig
        {
            public Config() => Add(StatisticColumn.OperationsPerSecond);
        }
    }
}