Npgsql.Tests.ReaderNewSchemaTests.DataTypeUnknownType C# (CSharp) Method

        public void DataTypeUnknownType()
        {
            using (var conn = OpenConnection())
            {
                conn.ExecuteNonQuery("CREATE TEMP TABLE data (foo INTEGER)");

                using (var cmd = new NpgsqlCommand("SELECT foo::INTEGER FROM data", conn))
                {
                    cmd.AllResultTypesAreUnknown = true;
                    using (var reader = cmd.ExecuteReader(CommandBehavior.SchemaOnly))
                    {
                        var columns = reader.GetColumnSchema();
                        Assert.That(columns[0].DataType, Is.SameAs(typeof(int)));
                    }
                }
            }
        }