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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-7566] simpler way to figure out if an index is multikey</title>
                <link>https://jira.mongodb.org/browse/SERVER-7566</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Determining if an index is multikeyed isn&apos;t simple - you have to write a query that uses the index and run explain().  It would be useful if you could discover it by just doing db.things.getIndexes()&lt;/p&gt;</description>
                <environment></environment>
        <key id="55375">SERVER-7566</key>
            <summary>simpler way to figure out if an index is multikey</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-query-execution">Backlog - Query Execution</assignee>
                                    <reporter username="ross@mongodb.com">Ross Lawley</reporter>
                        <labels>
                            <label>storch</label>
                    </labels>
                <created>Tue, 6 Nov 2012 13:29:47 +0000</created>
                <updated>Wed, 31 Jan 2024 17:11:52 +0000</updated>
                                                                            <component>Index Maintenance</component>
                                        <votes>15</votes>
                                    <watches>24</watches>
                                                                                                                <comments>
                            <comment id="1980643" author="asya" created="Mon, 20 Aug 2018 20:48:05 +0000"  >&lt;p&gt;Reassessing in next triage meeting.&lt;/p&gt;

&lt;p&gt;Determine if it&apos;s feasible to add multikey data to $indexStats&lt;/p&gt;</comment>
                            <comment id="1963182" author="adamaharrison@gmail.com" created="Wed, 1 Aug 2018 17:56:06 +0000"  >&lt;p&gt;Could this ticket be reassessed in terms of priority?&lt;/p&gt;

&lt;p&gt;I created &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36183&quot; title=&quot;collection.getIndexes() should display multikey metadata&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36183&quot;&gt;&lt;del&gt;SERVER-36183&lt;/del&gt;&lt;/a&gt; which was just recently merged into this ticket. As I described in that ticket, recent changes in MongoDB 3.2, 3.4 and 3.6 have introduced behaviors that are dependent on the version and multikeyness of an index. This is a significant behavior change from MongoDB 2.2 / 2.4 when this ticket was created and prioritized.&lt;/p&gt;</comment>
                            <comment id="182985" author="eliot" created="Tue, 6 Nov 2012 14:39:31 +0000"  >&lt;p&gt;getIndexes should only return schema information, not stats.&lt;br/&gt;
Could put this in db.foo.stats() maybe&lt;/p&gt;</comment>
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