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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-22966] Aggregation should use the output of DocumentSource::getOutputSorts() to optimize wherever possible.</title>
                <link>https://jira.mongodb.org/browse/SERVER-22966</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;As part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4507&quot; title=&quot;aggregation:  optimize $group to take advantage of sorted sequences&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4507&quot;&gt;SERVER-4507&lt;/a&gt;, a virtual method was introduced on DocumentSource, getOutputSorts, that allows the following stage to determine what, if any, sorting is present on the stream of input documents. At the moment, only $group takes advantage of this knowledge. Where possible, other stages should be expanded to take advantage of it as well. Of course, the primary example is $sort, which can do far less work if the input is already sorted by the sort key, but other possibilities may exist as well.&lt;/p&gt;</description>
                <environment></environment>
        <key id="270042">SERVER-22966</key>
            <summary>Aggregation should use the output of DocumentSource::getOutputSorts() to optimize wherever possible.</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-query-optimization">Backlog - Query Optimization</assignee>
                                    <reporter username="benjamin.murphy">Benjamin Murphy</reporter>
                        <labels>
                            <label>eng-s</label>
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                <created>Fri, 4 Mar 2016 18:18:50 +0000</created>
                <updated>Tue, 6 Dec 2022 04:31:46 +0000</updated>
                                                                            <component>Aggregation Framework</component>
                                        <votes>0</votes>
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