public async Task DataStream_Postgres_UpdateItem_Test()
        {
            var stream    = GetValidStream();
            var connector = new PostgresqlConnector(_logger);

            AssertSuccessful(await connector.InitAsync(stream));

            var deviceId = "DEV001";

            AssertSuccessful(await AddRecord(connector, stream, deviceId, 100, 356));

            var filteredItems = new Dictionary <string, object>()
            {
                { "deviceid", deviceId },
                { "int2", 356 },
            };


            var results = await connector.GetItemsAsync(filteredItems, new Core.Models.UIMetaData.ListRequest());

            Assert.AreEqual(1, results.Model.Count());
            Assert.AreEqual(100, results.Model.First()["int1"]);

            var updatedItems = new Dictionary <string, object>()
            {
                { "int1", 53 },
                { "dec1", 12.5 },
                { "str1", 12.5 },
            };

            await connector.UpdateItem(updatedItems, filteredItems);

            results = await connector.GetItemsAsync(filteredItems, new Core.Models.UIMetaData.ListRequest());

            Assert.AreEqual(1, results.Model.Count());
            Assert.AreEqual(53, results.Model.First()["int1"]);
        }