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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-79936] Handle multikey indexes in missing index keys check</title>
                <link>https://jira.mongodb.org/browse/SERVER-79936</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The missing index keys check uses &lt;a href=&quot;https://github.com/10gen/mongo/blob/master/src/mongo/db/storage/sorted_data_interface.h#L120&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;findLoc&lt;/a&gt; to retrieve the record ID of a keystring. findLoc returns the RecordId of the &lt;b&gt;first&lt;/b&gt; key whose prefix matches the keystring, so we may overlook a missing index key for fields that have identical values.&#160;&lt;/p&gt;

&lt;p&gt;To check for this, we can verify that the length of the expected index keys is equal to the number of unique keystrings we retrieve&lt;/p&gt;</description>
                <environment></environment>
        <key id="2415545">SERVER-79936</key>
            <summary>Handle multikey indexes in missing index keys check</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-server-repl">Backlog - Replication Team</assignee>
                                    <reporter username="aiden.szeto@mongodb.com">Aiden Szeto</reporter>
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                            <label>pm-855-milestone-5</label>
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                <created>Fri, 11 Aug 2023 14:55:59 +0000</created>
                <updated>Wed, 6 Dec 2023 18:09:52 +0000</updated>
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