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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-18725] Use PlanExecutor::enqueue() in favor of PipelineProxyStage::pushBack()</title>
                <link>https://jira.mongodb.org/browse/SERVER-18725</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ebd449e59e621e198a1b91f1c697b2a6b2ea8b2a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;ebd449e59e6&lt;/a&gt; under &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-17575&quot; title=&quot;Handle BSONObj size limits for find/getMore commands&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-17575&quot;&gt;&lt;del&gt;SERVER-17575&lt;/del&gt;&lt;/a&gt; introduced a method PlanExecutor::enqueue(). If a client to the query system retrieves a result but then is unable to consume it, you can push the result document back onto the PlanExecutor&apos;s stream using enqueue().&lt;/p&gt;

&lt;p&gt;The aggregation command currently has its own implementation for this inside the PipelineProxyStage. Since there is now a general mechanism, aggregation should move to using PlanExecutor::enqueue(). This will become easier after &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-17839&quot; title=&quot;Remove PlanStage::isEOF&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-17839&quot;&gt;SERVER-17839&lt;/a&gt; is implemented.&lt;/p&gt;</description>
                <environment></environment>
        <key id="207185">SERVER-18725</key>
            <summary>Use PlanExecutor::enqueue() in favor of PipelineProxyStage::pushBack()</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="david.storch@mongodb.com">David Storch</reporter>
                        <labels>
                    </labels>
                <created>Thu, 28 May 2015 21:21:28 +0000</created>
                <updated>Thu, 1 Oct 2015 20:13:19 +0000</updated>
                            <resolved>Thu, 1 Oct 2015 20:09:26 +0000</resolved>
                                                                    <component>Aggregation Framework</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1049125" author="max.hirschhorn@10gen.com" created="Thu, 1 Oct 2015 20:13:19 +0000"  >&lt;p&gt;Note that the &lt;tt&gt;_stash&lt;/tt&gt; member of &lt;tt&gt;PipelineProxyStage&lt;/tt&gt; cannot be removed until &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-17839&quot; title=&quot;Remove PlanStage::isEOF&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-17839&quot;&gt;SERVER-17839&lt;/a&gt; is done.&lt;/p&gt;</comment>
                            <comment id="1049119" author="david.storch" created="Thu, 1 Oct 2015 20:09:07 +0000"  >&lt;p&gt;Fixed under &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16444&quot; title=&quot;Avoid copying data out of WT buffers during tables scans&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16444&quot;&gt;&lt;del&gt;SERVER-16444&lt;/del&gt;&lt;/a&gt; in &lt;a href=&quot;https://github.com/mongodb/mongo/commit/764e0c45471d5ca63c708f362be0e6d01ee72eb0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;764e0c4547&lt;/a&gt;. Closing as a duplicate.&lt;/p&gt;</comment>
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            <issuekey id="193396">SERVER-17839</issuekey>
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