Yuan Tian created IOTDB-1387:
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Summary: Without Null ALL doesn't take effect in align by device
clause
Key: IOTDB-1387
URL: https://issues.apache.org/jira/browse/IOTDB-1387
Project: Apache IoTDB
Issue Type: Bug
Components: Core/Engine
Reporter: Yuan Tian
Assignee: Yuan Tian
Attachments: image-2021-05-21-15-30-19-233.png
The insert sql as following:
insert into root.sg1.d1(time,s1) values (1,1);
insert into root.sg1.d2(time,s1) values (1,1);
insert into root.sg1.d3(time,s1) values (1,1);
The query sql is:
select first_value(s1) from root.sg1.* group by ([1, 10), 1ms) order by time
desc without null all limit 2 align by device;
The result set is:
!image-2021-05-21-15-30-19-233.png!
The result set still contains null
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