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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-53759] Remove DocumentSource::usedDisk()</title>
                <link>https://jira.mongodb.org/browse/SERVER-53759</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e0c8a0bfdfc155443dcdae5bdb82575f4bfdb669/src/mongo/db/pipeline/document_source.h#L349&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;DocumentSource::usedDisk()&lt;/tt&gt;&lt;/a&gt; virtual method must be implemented by any agg stage which can spill to disk, such as $group or $sort, to indicate whether spilling to disk actually occurred at runtime. This seems like an overly specific virtual method to exist on &lt;tt&gt;DocumentSource&lt;/tt&gt;, the aggregation&apos;s abstract concept for any runtime query execution stage. Further, we have since extended &lt;tt&gt;DocumentSource&lt;/tt&gt; to support a more generic execution stats reporting interface which closely resembles that used by both the classic execution engine and the slot-based execution engine. In particular, we now have &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e0c8a0bfdfc155443dcdae5bdb82575f4bfdb669/src/mongo/db/pipeline/document_source.h#L297-L310&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;DocumentSource::getCommonStats()&lt;/tt&gt; and &lt;tt&gt;DocumentSource::getSpecificStats()&lt;/tt&gt;&lt;/a&gt;. As a simplification of the code, and an improvement of the &lt;tt&gt;DocumentSource&lt;/tt&gt; interface, we should consolidate &lt;tt&gt;usedDisk()&lt;/tt&gt; with these more generic agg execution stats methods and delete &lt;tt&gt;usedDisk()&lt;/tt&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1589191">SERVER-53759</key>
            <summary>Remove DocumentSource::usedDisk()</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="david.storch@mongodb.com">David Storch</reporter>
                        <labels>
                    </labels>
                <created>Wed, 13 Jan 2021 19:46:30 +0000</created>
                <updated>Tue, 6 Dec 2022 01:39:20 +0000</updated>
                                                                            <component>Aggregation Framework</component>
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