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https://issues.apache.org/jira/browse/CALCITE-5766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17730311#comment-17730311
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Tanner Clary commented on CALCITE-5766:
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[~julianhyde] Your point still remains either way, I'll do some more research
and add more overflow checks/tests.
> Implement SAFE_NEGATE function (enabled for BigQuery)
> -----------------------------------------------------
>
> Key: CALCITE-5766
> URL: https://issues.apache.org/jira/browse/CALCITE-5766
> Project: Calcite
> Issue Type: Sub-task
> Reporter: Tanner Clary
> Assignee: Tanner Clary
> Priority: Major
> Labels: pull-request-available
>
> Add support for SAFE_NEGATE in BigQuery.
> SAFE_NEGATE: Equivalent to the unary minus operator (-), but returns NULL if
> overflow occurs.
> Example #1: {{SELECT SAFE_NEGATE(3)}} would return {{-3}}.
> Example #2: {{SELECT SAFE_NEGATE(-9223372036854775808)}} would return
> {{NULL}} because of overflow.
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