[jira] [Created] (IOTDB-2637) NPE at go client

["Jianyun Cheng (Jira)" <ji...@apache.org>]

Jianyun Cheng created IOTDB-2637:
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             Summary: NPE at go client
                 Key: IOTDB-2637
                 URL: https://issues.apache.org/jira/browse/IOTDB-2637
             Project: Apache IoTDB
          Issue Type: Bug
          Components: Client/Others
            Reporter: Jianyun Cheng


Version: 

go client: 0.12.0

server: 0.13.0

GO client will throw NPE when query result is not success.
{code:java}
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x0 pc=0x2aadd9]goroutine 1 [running]:
github.com/apache/iotdb-client-go/client.(*Session).genDataSet(0xc00007aea0, 0x30c486, 0x37, 0xc00014e0e0, 0xc00014e0e0)
        D:/Project/iotdb/client-go/client/session.go:443 +0x79
github.com/apache/iotdb-client-go/client.(*Session).ExecuteStatement(0xc00007aea0, 0x30c486, 0x37, 0x0, 0x0, 0x0)
        D:/Project/iotdb/client-go/client/session.go:270 +0x139
main.executeStatement()
        D:/Project/iotdb/client-go/example/session_example.go:439 +0x4d
main.main()
        D:/Project/iotdb/client-go/example/session_example.go:101 +0x3d5 {code}
*Reproduce:*
 # create storage group with keywords:  
{code:java}
create storage group root.iot.`property`.testsg {code}

 # access the storage group without escaping: 
{code:java}
set ttl to root.iot.property.testsg 12345 {code}

*Expect:*

client get error message and error code

*Actual:*

go client get NPE



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