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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[DOCS-3683] Provide methodological way of thinking about indexes</title>
                <link>https://jira.mongodb.org/browse/DOCS-3683</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;p&gt;Currently we cover off a few finite examples of how to build indexes for certain kinds of queries. Support regularly recommend reading the following blog post by Jesse to many of our customers as it contains some stellar thinking and a great methodology:&lt;br/&gt;
&lt;a href=&quot;http://emptysqua.re/blog/optimizing-mongodb-compound-indexes/#method&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://emptysqua.re/blog/optimizing-mongodb-compound-indexes/#method&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Can we add a new document which explains how to think about building indexes for particular families of queries and (assuming Jesse is okay with it) provides his suggested method for thinking about indexes:&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;Equality Tests
	&lt;ol&gt;
		&lt;li&gt;Add all equality-tested fields to the compound index, in any order&lt;/li&gt;
	&lt;/ol&gt;
	&lt;/li&gt;
	&lt;li&gt;Sort Fields (ascending / descending only matters if there are multiple sort fields)
	&lt;ol&gt;
		&lt;li&gt;Add sort fields to the index in the same order and direction as your query&apos;s sort&lt;/li&gt;
	&lt;/ol&gt;
	&lt;/li&gt;
	&lt;li&gt;Range Filters
	&lt;ol&gt;
		&lt;li&gt;First, add the range filter for the field with the lowest cardinality (fewest distinct values in the collection)&lt;/li&gt;
		&lt;li&gt;Then the next lowest-cardinality range filter, and so on to the highest-cardinality&lt;/li&gt;
	&lt;/ol&gt;
	&lt;/li&gt;
&lt;/ol&gt;
</description>
                <environment></environment>
        <key id="144712">DOCS-3683</key>
            <summary>Provide methodological way of thinking about indexes</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="david.hows">David Hows</reporter>
                        <labels>
                            <label>query</label>
                    </labels>
                <created>Mon, 30 Jun 2014 22:39:52 +0000</created>
                <updated>Wed, 11 Jan 2017 22:39:14 +0000</updated>
                            <resolved>Wed, 27 Jul 2016 17:45:31 +0000</resolved>
                                                    <fixVersion>01112017-cleanup</fixVersion>
                                    <component>manual</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1338016" author="emily.hall" created="Wed, 27 Jul 2016 17:45:31 +0000"  >&lt;p&gt;Closed for housekeeping on 7/27/2016 by Emily Hall. &lt;br/&gt;
If you require additional support, please open a new ticket for prioritization. &lt;br/&gt;
Thanks,&lt;br/&gt;
Emily&lt;/p&gt;</comment>
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