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https://issues.apache.org/jira/browse/CALCITE-4420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17387818#comment-17387818
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duan xiong commented on CALCITE-4420:
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[~fan_li_ya] This PR has been merged, So This Issue status should be uodated to
SOLVED.
> Some simple arithmetic operations can be simplified
> ---------------------------------------------------
>
> Key: CALCITE-4420
> URL: https://issues.apache.org/jira/browse/CALCITE-4420
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Liya Fan
> Assignee: Liya Fan
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3h 20m
> Remaining Estimate: 0h
>
> Some simple arithmetic operations can be simplified, for example:
> a + 0 = a
> a - 0 = a
> a * 1 = a
> a / 1 = a
> In our product, we found such scenarios are fairly frequently encountered.
> For example, some SQL programmers use a * 1.0 as a convenient way to cast
> {{a}} to floating point type.
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