xiaozhihong created IOTDB-1887:
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Summary: In a clean IOTDB, without creating metadata, directly
importing data containing null indicates an exception
Key: IOTDB-1887
URL: https://issues.apache.org/jira/browse/IOTDB-1887
Project: Apache IoTDB
Issue Type: Bug
Components: Tools/Others
Affects Versions: 0.12.3
Reporter: xiaozhihong
The process is as follows：
Step 1： start a clean Iotdb sever
Step 2: Execute import command
./import-csv.sh -h 127.0.0.1 -p 6667 -u root -pw root -f
/home/xzh/csv-data/sg.txt
Then will see log:
15:31:51.210 [main] DEBUG org.apache.iotdb.session.Session -
EndPoint(ip:127.0.0.1, port:6667) execute sql select * from
root.sg.d1,root.sg.d2 limit 1
yyyy-MM-dd'T'HH:mm:ss.SSSX
Line 3: null can't convert to INT32
Line 3: null can't convert to FLOAT
Line 4: null can't convert to INT32
Line 4: null can't convert to FLOAT
Line 1: null can't convert to INT64
Line 1: null can't convert to INT64
Line 1: null can't convert to INT64
Line 2: null can't convert to INT64
Line 2: null can't convert to INT64
Line 2: null can't convert to INT64
Line 3: 2.0 can't convert to INT64
Line 3: null can't convert to INT64
Line 4: 2.0 can't convert to INT64
Line 4: true can't convert to INT64
Import completely!
sg.txt
```
Time,root.sg.d1.s1,root.sg.d1.s2,root.sg.d2.s1,root.sg.d2.s2,root.sg.d2.s3
2020-08-18T10:22:31.603+08:00,1,2.0,null,null,null
2020-08-18T10:22:35.631+08:00,1,2.0,null,null,null
2020-08-18T10:22:41.093+08:00,null,null,1,2.0,null
2020-08-18T10:22:52.603+08:00,null,null,1,2.0,true
```
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