limeng32 created IOTDB-2814:
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Summary: The native addition, subtraction, multiplication and
division in the current sql will cause precision problems
Key: IOTDB-2814
URL: https://issues.apache.org/jira/browse/IOTDB-2814
Project: Apache IoTDB
Issue Type: Improvement
Reporter: limeng32
Attachments: image-2022-03-28-10-32-44-405.png
Currently, native addition, subtraction, multiplication and division of Float
fields on SQL will cause problems with the accuracy of the results, as shown in
the following figure:
!image-2022-03-28-10-32-44-405.png!
This is mainly due to the fact that there is no special treatment for precision
when converting the Float type to the Double type in the program. This problem
will not appear when there are no four arithmetic operations, but the problem
is obvious when there are four arithmetic operations.
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