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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-26230] Aggregation plan summary incorrectly reports keysExamined and docsExamined</title>
                <link>https://jira.mongodb.org/browse/SERVER-26230</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;On each batch we load through DocumentSourceCursor, we will accidentally bump the keysExamined and docsExamined instead of resetting them to zero and then re-computing them.&lt;/p&gt;

&lt;p&gt;More specifically, &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r3.3.12/src/mongo/db/pipeline/document_source_cursor.cpp#L99&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;Explain::getSummaryStats()&lt;/tt&gt; is called (indirectly) during &lt;tt&gt;DocumentSourceCursor::loadBatch()&lt;/tt&gt;&lt;/a&gt;. That will &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r3.3.12/src/mongo/db/query/explain.cpp#L842-L845&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;increment the totalKeysExamined and totalDocsExamined&lt;/a&gt; for each stage, but these were never reset to 0, so it will double count the first batch.&lt;/p&gt;</description>
                <environment></environment>
        <key id="317973">SERVER-26230</key>
            <summary>Aggregation plan summary incorrectly reports keysExamined and docsExamined</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="9">Done</resolution>
                                        <assignee username="tess.avitabile@mongodb.com">Tess Avitabile</assignee>
                                    <reporter username="charlie.swanson@mongodb.com">Charlie Swanson</reporter>
                        <labels>
                    </labels>
                <created>Wed, 21 Sep 2016 21:49:58 +0000</created>
                <updated>Sat, 19 Nov 2016 00:02:49 +0000</updated>
                            <resolved>Fri, 30 Sep 2016 15:25:28 +0000</resolved>
                                    <version>3.3.12</version>
                                    <fixVersion>3.4.0-rc0</fixVersion>
                                    <component>Aggregation Framework</component>
                    <component>Diagnostics</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1397659" author="xgen-internal-githook" created="Fri, 30 Sep 2016 15:24:47 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;tessavitabile&apos;, u&apos;name&apos;: u&apos;Tess Avitabile&apos;, u&apos;email&apos;: u&apos;tess.avitabile@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-26230&quot; title=&quot;Aggregation plan summary incorrectly reports keysExamined and docsExamined&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-26230&quot;&gt;&lt;del&gt;SERVER-26230&lt;/del&gt;&lt;/a&gt; DocumentSourceCursor should reset keysExamined and docsExamined between batches&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/cbea5409faa7c1bc717aa9000fa6c904c27a1a90&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/cbea5409faa7c1bc717aa9000fa6c904c27a1a90&lt;/a&gt;&lt;/p&gt;</comment>
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