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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-43102] Don&apos;t add DocumentSourceSequentialDocumentCache to lookup pipelines when disablePipelineOptimization failpoint is enabled</title>
                <link>https://jira.mongodb.org/browse/SERVER-43102</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In order to cache the non-correlated pipeline prefix of a $lookup pipeline, DocumentSourceLookup &lt;a href=&quot;https://github.com/mongodb/mongo/blob/44a2cf09607a0659869069e288a799d153fc6cf3/src/mongo/db/pipeline/document_source_lookup.cpp#L301-L305&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;adds a&#160;DocumentSourceSequentialDocumentCache&lt;/a&gt; to the end of the foreign pipeline and then relies on pipeline optimization to position the cache directly. When the&#160;disablePipelineOptimization failpoint is set, &lt;a href=&quot;https://github.com/mongodb/mongo/blob/44a2cf09607a0659869069e288a799d153fc6cf3/src/mongo/db/pipeline/pipeline.cpp#L269-L271&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Pipeline::optimizePipeline() will exit early&lt;/a&gt; and correct placement of the cache will not occur. This will cause the entire foreign pipeline to be cached and will lead to incorrect results when pipeline correlation exists.&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="913623">SERVER-43102</key>
            <summary>Don&apos;t add DocumentSourceSequentialDocumentCache to lookup pipelines when disablePipelineOptimization failpoint is enabled</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="13203">Gone away</resolution>
                                        <assignee username="arun.banala@mongodb.com">Arun Banala</assignee>
                                    <reporter username="james.wahlin@mongodb.com">James Wahlin</reporter>
                        <labels>
                    </labels>
                <created>Fri, 30 Aug 2019 17:20:56 +0000</created>
                <updated>Fri, 27 Oct 2023 20:42:42 +0000</updated>
                            <resolved>Fri, 15 Nov 2019 13:33:18 +0000</resolved>
                                                                    <component>Aggregation Framework</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="2542930" author="anton.korshunov" created="Fri, 15 Nov 2019 13:33:19 +0000"  >&lt;p&gt;Fixed in&#160;&lt;del&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-43294&quot; title=&quot;Add new aggregation suite to be run with pipeline optimization turned off&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-43294&quot;&gt;&lt;del&gt;SERVER-43294&lt;/del&gt;&lt;/a&gt;.&lt;/del&gt;&lt;/p&gt;</comment>
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