apache / apache/iotdb-client-csharp

ALIGN BY DEVICE 查询结果错误

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Langage dominant
C#
Étoiles
24
Forks
6
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Description

版本:Apache.IoTDB.Data 1.0.0.3

查询这样的语句,第2行获取不到数据。
sql:select FIRST_VALUE(ctwingCmdBody) as ctwingCmdBody ,MIN_TIME(ctwingCmdBody) as ts from root.beijingheat.commandCreate.IOT16810103.T10495873.P16810103.* where Time >= 2012-05-22T21:51:48.929 and Time < 2023-10-19T13:51:48.929 ALIGN BY DEVICE

cli的执行有结果:

![1697696411896](https://github.com/apache/iotdb-client-csharp/assets/10105646/aaaf2ee6-c525-451a-b780-d3223b3730a7)

测试代码如下:

using System.Data;
using Apache.IoTDB.Data;
using Microsoft.Extensions.Logging;

namespace ConsoleApp2
{
internal class Program
{
static void Main(string[] args)
{
string sql = "select FIRST_VALUE(ctwingCmdBody) as ctwingCmdBody ,MIN_TIME(ctwingCmdBody) as ts from root.beijingheat.commandCreate.IOT16810103.T10495873.P16810103.* where Time >= 2012-05-22T21:51:48.929 and Time < 2023-10-19T13:51:48.929 ALIGN BY DEVICE ";

IoTDBConnection _ioTDB= new IoTDBConnection("DataSource=192.168.1.101;Port=6667;Username=root;Password=root;Compression=false"); ;

Apache.IoTDB.SessionPool _session= _ioTDB.SessionPool;

Task.Run(async () =>
{
_session.Open();

var query =await _session.ExecuteQueryStatementAsync(sql);
while (query.HasNext())
{
var next = query.Next();
var values = next.Values;
var time = next.GetDateTime();
foreach (var item in values)
{
Console.WriteLine($"{item}");
}

}

});
Console.ReadLine();
}
}
}

执行结果如下:
![image](https://github.com/apache/iotdb-client-csharp/assets/10105646/c080d514-ff55-47e5-9473-99e2bd312e6d)

Guide de contribution

Aucun guide de contribution indexé pour ce dépôt

Piste de recherche

Start with the supplied C# console reproduction and the ExecuteQueryStatementAsync entry point, then inspect how the returned query rows and Values are iterated for the ALIGN BY DEVICE statement. Compare the client output with the CLI result, focusing on why the second row is missing. Done means the C# client returns the same rows as the CLI for this SQL.

Rédigé par le modèle d'indexation à partir du texte de l'issue.

Évaluation

Stack technique
csharp
Domaine
databases
Type d'issue
Bug
Difficulté
3/5
Temps estimé
1-2 jours
Activité
À l'abandon
Clarté
Plutôt claire
Accessibilité débutants
35/100

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