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<channel>
    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <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>
    </build-info>


<item>
            <title>[DOCS-14442] Warn about performance issues with $in</title>
                <link>https://jira.mongodb.org/browse/DOCS-14442</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;h2&gt;&lt;a name=&quot;Description&quot;&gt;&lt;/a&gt;Description&lt;/h2&gt;
&lt;p&gt;Page: &lt;a href=&quot;https://docs.mongodb.com/manual/reference/operator/query/in/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/manual/reference/operator/query/in/&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;There can be some performance issues when passing hundreds or thousands of parameters as a $in array. We should note that this is an anti-pattern and may be solved via a schema redesign.&lt;/p&gt;

&lt;p&gt;Also, we should recommend that an index exists with the field. In the example here,&#160; indexes like {tags: 1} and {qty: 1} would be very beneficial.&#160;&lt;/p&gt;

&lt;h2&gt;&lt;a name=&quot;Scopeofchanges&quot;&gt;&lt;/a&gt;Scope of changes&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;ImpacttoOtherDocs&quot;&gt;&lt;/a&gt;Impact to Other Docs&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;MVP%28WorkandDate%29&quot;&gt;&lt;/a&gt;MVP (Work and Date)&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;Resources%28ScopeorDesignDocs%2CInvision%2Cetc.%29&quot;&gt;&lt;/a&gt;Resources (Scope or Design Docs, Invision, etc.)&lt;/h2&gt;
</description>
                <environment></environment>
        <key id="1710687">DOCS-14442</key>
            <summary>Warn about performance issues with $in</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="13201">Fixed</resolution>
                                        <assignee username="kenneth.dyer@mongodb.com">Kenneth Dyer</assignee>
                                    <reporter username="nicholas.cottrell@mongodb.com">Nic Cottrell</reporter>
                        <labels>
                            <label>docs-onboarding-candidate</label>
                    </labels>
                <created>Tue, 11 May 2021 13:29:49 +0000</created>
                <updated>Mon, 30 Oct 2023 20:08:20 +0000</updated>
                            <resolved>Tue, 1 Mar 2022 15:03:31 +0000</resolved>
                                                    <fixVersion>Server_Docs_20231030</fixVersion>
                                    <component>manual</component>
                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="4382218" author="xgen-internal-githook" created="Mon, 28 Feb 2022 23:17:22 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kenneth P. J. Dyer&apos;, &apos;email&apos;: &apos;93145796+kennethdyer@users.noreply.github.com&apos;, &apos;username&apos;: &apos;kennethdyer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt;  $in operator performance limitation (#258) (#739)&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt;  operator limitation&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Fixes from internal review&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/docs-mongodb-internal/commit/27b0e7311ebcd70e5e3f80db707f9a552078e96f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/docs-mongodb-internal/commit/27b0e7311ebcd70e5e3f80db707f9a552078e96f&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="4382217" author="xgen-internal-githook" created="Mon, 28 Feb 2022 23:17:12 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kenneth P. J. Dyer&apos;, &apos;email&apos;: &apos;93145796+kennethdyer@users.noreply.github.com&apos;, &apos;username&apos;: &apos;kennethdyer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt;  $in operator performance limitation (#258) (#738)&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt;  operator limitation&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Fixes from internal review&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/docs-mongodb-internal/commit/8d1ee50e3eb40bc800fe7a7ce5eb1067f27cb188&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/docs-mongodb-internal/commit/8d1ee50e3eb40bc800fe7a7ce5eb1067f27cb188&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="4382216" author="xgen-internal-githook" created="Mon, 28 Feb 2022 23:17:02 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kenneth P. J. Dyer&apos;, &apos;email&apos;: &apos;93145796+kennethdyer@users.noreply.github.com&apos;, &apos;username&apos;: &apos;kennethdyer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt;  $in operator performance limitation (#258) (#737)&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt;  operator limitation&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Fixes from internal review&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/docs-mongodb-internal/commit/d0b710bdf874f65f9370db16061077e318ba4b6d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/docs-mongodb-internal/commit/d0b710bdf874f65f9370db16061077e318ba4b6d&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="4382215" author="xgen-internal-githook" created="Mon, 28 Feb 2022 23:16:53 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kenneth P. J. Dyer&apos;, &apos;email&apos;: &apos;93145796+kennethdyer@users.noreply.github.com&apos;, &apos;username&apos;: &apos;kennethdyer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt;  $in operator performance limitation (#258) (#736)&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt;  operator limitation&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Fixes from internal review&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/docs-mongodb-internal/commit/f9dcd2d13f84eb676f463637e010e7cd37cf3a12&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/docs-mongodb-internal/commit/f9dcd2d13f84eb676f463637e010e7cd37cf3a12&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="4382214" author="xgen-internal-githook" created="Mon, 28 Feb 2022 23:16:42 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kenneth P. J. Dyer&apos;, &apos;email&apos;: &apos;93145796+kennethdyer@users.noreply.github.com&apos;, &apos;username&apos;: &apos;kennethdyer&apos;}
&lt;p&gt;Message: Docs 14442 in operator limits v5.2 (#735)&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt;  $in operator performance limitation (#258)&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt;  operator limitation&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Fixes from internal review&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; add whitespace to trigger build&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt;  remove  whitespace to trigger build&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Fixs header&lt;br/&gt;
Branch: v5.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/docs-mongodb-internal/commit/d5193e95b200761770b896dac2757e4288655aab&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/docs-mongodb-internal/commit/d5193e95b200761770b896dac2757e4288655aab&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="4380745" author="xgen-internal-githook" created="Mon, 28 Feb 2022 16:28:21 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kenneth P. J. Dyer&apos;, &apos;email&apos;: &apos;93145796+kennethdyer@users.noreply.github.com&apos;, &apos;username&apos;: &apos;kennethdyer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt;  $in operator performance limitation (#258)&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt;  operator limitation&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Fixes from internal review&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-14442&quot; title=&quot;Warn about performance issues with $in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-14442&quot;&gt;&lt;del&gt;DOCS-14442&lt;/del&gt;&lt;/a&gt; Refactor per Nic Feedback&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/docs-mongodb-internal/commit/00cdfb6fce79eef91a5ef21b3210281f86f92b12&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/docs-mongodb-internal/commit/00cdfb6fce79eef91a5ef21b3210281f86f92b12&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
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