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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-20378] Clean up DocumentSourceUnwind::Unwinder, attempt to share code with $lookUp</title>
                <link>https://jira.mongodb.org/browse/SERVER-20378</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently the &lt;tt&gt;$lookUp&lt;/tt&gt; stage has to duplicate much of the logic of the &lt;tt&gt;$unwind&lt;/tt&gt; stage in order to be able to coalesce with it. It would be nice if the logic could all live in one place. Additionally, &lt;tt&gt;DocumentSourceUnwind&lt;/tt&gt;, and &lt;tt&gt;DocumentSourceUnwind::Unwinder&lt;/tt&gt; share many member variables, and could probably be merged into one class somehow.&lt;/p&gt;</description>
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        <key id="229397">SERVER-20378</key>
            <summary>Clean up DocumentSourceUnwind::Unwinder, attempt to share code with $lookUp</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-execution">Backlog - Query Execution</assignee>
                                    <reporter username="charlie.swanson@mongodb.com">Charlie Swanson</reporter>
                        <labels>
                            <label>optimization</label>
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                <created>Fri, 11 Sep 2015 19:07:01 +0000</created>
                <updated>Tue, 6 Dec 2022 04:44:27 +0000</updated>
                                            <version>3.1.8</version>
                                                    <component>Aggregation Framework</component>
                    <component>Internal Code</component>
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