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    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[DOCS-16614] [Server] Fix advice for improving lookup performance </title>
                <link>https://jira.mongodb.org/browse/DOCS-16614</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;p&gt;&lt;b&gt;This ticket addresses the v5.0-v7.0 fixes. The v4.4 issue is being addressed in &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-16616&quot; title=&quot;[Server] Fix advice for improving lookup performance &quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-16616&quot;&gt;&lt;del&gt;DOCS-16616&lt;/del&gt;&lt;/a&gt;.&lt;/b&gt;&lt;/p&gt;

&lt;p&gt;4.4 &lt;br/&gt;
&lt;a href=&quot;https://www.mongodb.com/docs/v4.4/reference/operator/aggregation/lookup/#std-label-equality-match-performance&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://www.mongodb.com/docs/v4.4/reference/operator/aggregation/lookup/#std-label-equality-match-performance&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;The text for the first row should be corrected as this:&lt;/p&gt;

&lt;p&gt;$lookup operations that perform equality matches with a single join typically perform better when the foreign collection contains an index on the foreignField.&lt;/p&gt;

&lt;p&gt;5.0-7.0&lt;br/&gt;
&lt;a href=&quot;https://www.mongodb.com/docs/v5.0/reference/operator/aggregation/lookup/#performance-considerations&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://www.mongodb.com/docs/v5.0/reference/operator/aggregation/lookup/#performance-considerations&lt;/a&gt;&lt;br/&gt;
&lt;a href=&quot;https://www.mongodb.com/docs/v6.0/reference/operator/aggregation/lookup/#performance-considerations&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://www.mongodb.com/docs/v6.0/reference/operator/aggregation/lookup/#performance-considerations&lt;/a&gt;&lt;br/&gt;
&lt;a href=&quot;https://www.mongodb.com/docs/manual/reference/operator/aggregation/lookup/#performance-considerations&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://www.mongodb.com/docs/manual/reference/operator/aggregation/lookup/#performance-considerations&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;correct text for the first row&lt;/p&gt;

&lt;p&gt;$lookup operations that perform equality matches with a single join typically perform better when the foreign collection contains an index on the foreignField.&lt;/p&gt;

&lt;p&gt;remove the second bullet&lt;/p&gt;

</description>
                <environment></environment>
        <key id="2560786">DOCS-16614</key>
            <summary>[Server] Fix advice for improving lookup performance </summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="lauren.tran@mongodb.com">Lauren Tran</assignee>
                                    <reporter username="rushan.chen@mongodb.com">Rushan Chen</reporter>
                        <labels>
                            <label>bug</label>
                    </labels>
                <created>Tue, 30 Jan 2024 10:42:13 +0000</created>
                <updated>Mon, 5 Feb 2024 16:20:56 +0000</updated>
                            <resolved>Tue, 30 Jan 2024 22:00:39 +0000</resolved>
                                                    <fixVersion>5.0.0</fixVersion>
                    <fixVersion>6.0.0</fixVersion>
                    <fixVersion>7.0.0</fixVersion>
                    <fixVersion>Server_Docs_[20240205]</fixVersion>
                                    <component>manual</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="6052617" author="JIRAUSER1260472" created="Tue, 30 Jan 2024 15:46:37 +0000"  >&lt;p&gt;Since this issue deals with multiple different versions of the docs, I&apos;m going to split this up into multiple tickets to address the different version-split fixes.&lt;/p&gt;</comment>
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