Minghui Liu created IOTDB-4215:
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Summary: Incorrect aggregate query results due to wrong unseq file
traversal order
Key: IOTDB-4215
URL: https://issues.apache.org/jira/browse/IOTDB-4215
Project: Apache IoTDB
Issue Type: Improvement
Reporter: Minghui Liu
Assignee: Minghui Liu
Fix For: master branch, 0.12.5-SNAPSHOT, 0.13.1-SNAPSHOT
*sqls:*
insert into root.sg1.d1(time, s1) values (12, 12);
flush;
insert into root.sg1.d1(time, s2) values (30, 30);
flush;
insert into root.sg1.d1(time, s1) values (0, 0);
insert into root.sg1.d1(time, s1) values (8, 8);
flush;
insert into root.sg1.d1(time, s1) values (0, 0);
insert into root.sg1.d1(time, s1) values (10, 10);
flush;
insert into root.sg1.d1(time, s1) values (17, 17);
insert into root.sg1.d1(time, s1) values (20, 20);
flush;
select first_value(s1), last_value(s1) from root.sg1.d1;
select first_value(s1), last_value(s1) from root.sg1.d1 order by desc;
*actual:*
0.0, 12.0
12.0 20.0
*expected:*
0.0, 20.0
0.0, 20.0
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