apache / iotdb

Apache IoTDB
https://iotdb.apache.org/
Apache License 2.0
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[Bug] There is a logical error in the comparison operator. #14139

Open LingweiKuang opened 1 week ago

LingweiKuang commented 1 week ago

Search before asking

Version

version 1.3.3 (Build: ad95a7e)

Describe the bug and provide the minimal reproduce step

DROP DATABASE root.db0
CREATE DATABASE root.db0

CREATE TIMESERIES root.db0.t1 WITH datatype=DOUBLE 'MAX_POINT_NUMBER'='8';
INSERT INTO root.db0(timestamp, t1) VALUES (1685589672533, 0.01);
INSERT INTO root.db0(t1) VALUES (0.02);

# query 1
SELECT t1 AS ref0 FROM root.db0 WHERE 0.02 <= t1 AND t1 <= 0.03

# query 2
SELECT t1 AS ref0 FROM root.db0 WHERE 0.01 <= t1 AND t1 <= 0.03

# query 3
SELECT t1 AS ref0 FROM root.db0 WHERE 1 < time

# query 3 success
SELECT t1 AS ref0 FROM root.db0 WHERE t1 >= 0.01 AND t1 <= 0.03

What did you expect to see?

Query 1 returned result set: 0.02

Query 2 returned result set: 0.01 and 0.02

Query 3 returned result set: 0.01 and 0.02

Query 4 returned result set: 0.01 and 0.02

What did you see instead?

Query 1 returned result set: 0.01 and 0.02

Query 2 returned result set: 0.02

Query 3 returned result set: Empty set.

Query 4 returned result set: 0.01 and 0.02

Anything else?

Dear IoTDB team, I believe this is a logical bug. When the comparison operator is in the form of constant <= column, the correct result set cannot be returned.

Are you willing to submit a PR?

LingweiKuang commented 1 week ago

There is a logical error in the comparison operator

CritasWang commented 1 week ago

Thank you for your feedback