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https://issues.apache.org/jira/browse/IOTDB-1885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17433805#comment-17433805
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Zhong Wang commented on IOTDB-1885:
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Sure.
> Support type inference
> ----------------------
>
> Key: IOTDB-1885
> URL: https://issues.apache.org/jira/browse/IOTDB-1885
> Project: Apache IoTDB
> Issue Type: Improvement
> Components: Core/Engine
> Reporter: Zhong Wang
> Priority: Major
>
> Currently, arithmetic operation's inputs/outputs are treated as doubles (See:
> ArithmeticBinaryTransformer#evaluate). But sometimes this can be really
> unintuitive. For example, the sum of two int32 time series results in a
> double.
> Since we have the metadata of every time series that takes part in the
> calculation, we can implement type inference to make the results more
> intuitive.
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