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https://issues.apache.org/jira/browse/CALCITE-5735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17727756#comment-17727756
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Dan Zou commented on CALCITE-5735:
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Sure, I would like to review it.
> Implement SAFE_MULTIPLY function (enabled for BigQuery)
> -------------------------------------------------------
>
> Key: CALCITE-5735
> URL: https://issues.apache.org/jira/browse/CALCITE-5735
> Project: Calcite
> Issue Type: Sub-task
> Reporter: Tanner Clary
> Assignee: Tanner Clary
> Priority: Major
> Labels: pull-request-available
>
> Add support for SAFE_MULTIPLY in BigQuery.
> SAFE_MULTIPLY: Equivalent to the multiplication operator '*', but returns
> NULL if overflow occurs.
> Example #1: {{SELECT SAFE_MULTIPLY(3, 4)}} would return {{12}}.
> Example #2: {{SELECT SAFE_MULTIPLY(2^63, 2)}} would return {{NULL}} because
> of overflow.
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