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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-47724] Create execution machinery for projecting through individual array elements</title>
                <link>https://jira.mongodb.org/browse/SERVER-47724</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description></description>
                <environment></environment>
        <key id="1327148">SERVER-47724</key>
            <summary>Create execution machinery for projecting through individual array elements</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="2">Won&apos;t Fix</resolution>
                                        <assignee username="ian.boros@mongodb.com">Ian Boros</assignee>
                                    <reporter username="ian.boros@mongodb.com">Ian Boros</reporter>
                        <labels>
                            <label>qexec-team</label>
                    </labels>
                <created>Thu, 23 Apr 2020 17:55:48 +0000</created>
                <updated>Wed, 20 May 2020 18:49:51 +0000</updated>
                            <resolved>Wed, 20 May 2020 18:49:51 +0000</resolved>
                                                                    <component>Querying</component>
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                                                                                                                <comments>
                            <comment id="3097980" author="ian.boros" created="Wed, 20 May 2020 18:49:38 +0000"  >&lt;p&gt;We&apos;ve decided to take a different approach for this project. Instead of re-using the projection execution machinery (which is expensive to build, as it&apos;s designed to be run many times, and it also contains some confusing behavior from MQL semantics), we&apos;re going to write some custom code to do the diff application.&lt;/p&gt;


&lt;p&gt;If in the future we ever decide to do something like this again, the WIP code review may be helpful (below). Closing as Won&apos;t Fix.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://mongodbcr.appspot.com/603880001/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://mongodbcr.appspot.com/603880001/&lt;/a&gt;&lt;/p&gt;</comment>
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