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https://issues.apache.org/jira/browse/SOLR-9916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15860761#comment-15860761
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ASF subversion and git services commented on SOLR-9916:
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Commit 7372df9957b75c08283af6db47234df1787f1490 in lucene-solr's branch
refs/heads/branch_6x from [~dpgove]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=7372df9 ]
SOLR-9916: Adds Stream Evaluators to support evaluating values from tuples
> Add arithmetic operations to the SelectStream
> ---------------------------------------------
>
> Key: SOLR-9916
> URL: https://issues.apache.org/jira/browse/SOLR-9916
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Attachments: SOLR-9916.patch, SOLR-9916.patch, SOLR-9916.patch
>
>
> One of the things that will be needed as the SQL implementation matures is
> the ability to do arithmetic operations. For example:
> select (a+b) from x;
> select sum(a)+sum(b) from x;
> We will need to support arithmetic operations within the Streaming API to
> support these types of operations.
> It looks like adding arithmetic operations to the SelectStream is the best
> place to add this functionality.
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