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            <title>[SERVER-62832] [ABT] Investigate how to support &#8216;find({a: 5}, {&apos;x.$&apos;: 1})&#8217;</title>
                <link>https://jira.mongodb.org/browse/SERVER-62832</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This task is listed as &quot;optional&quot; in the &quot;Lower physical tree to SBE plan&quot; scope document.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://docs.mongodb.com/manual/reference/operator/projection/positional/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&#8217;find({a: 5}, {&apos;x.$&apos;: 1})&#8217;&lt;/a&gt; records the index k of the first element of array &#8220;a&#8221; that is equal to 5, and then accesses the kth element of array &#8220;x&#8221;.&lt;/p&gt;

&lt;p&gt;This feature is outside of the scope of &lt;a href=&quot;https://docs.google.com/spreadsheets/d/1W5yCO9-xzWi-xEG7aGhUJWYdd2M1C_hjqyHvOMLdPIA/edit#gid=1421536054&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;CQF Milestone 2&lt;/a&gt;, but this is an important thing to explore in order to prove that our model for the SBE Plan Generator will continue to work well for future CQF milestones.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1968014">SERVER-62832</key>
            <summary>[ABT] Investigate how to support &#8216;find({a: 5}, {&apos;x.$&apos;: 1})&#8217;</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="backlog-query-optimization">Backlog - Query Optimization</assignee>
                                    <reporter username="andrew.paroski@mongodb.com">Drew Paroski</reporter>
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                <created>Fri, 21 Jan 2022 01:54:48 +0000</created>
                <updated>Thu, 22 Dec 2022 19:44:59 +0000</updated>
                            <resolved>Thu, 22 Dec 2022 19:44:59 +0000</resolved>
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