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    <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>[SERVER-59933] Improve array handling for time-series metric indexes</title>
                <link>https://jira.mongodb.org/browse/SERVER-59933</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-59305&quot; title=&quot;Reject timeseries measurements with array values in indexed fields&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-59305&quot;&gt;&lt;del&gt;SERVER-59305&lt;/del&gt;&lt;/a&gt; introduces a validation method which scans over the measurement data for time-series indexes if the corresponding control field is indexed, in order to reject measurements with disallowed array values.&lt;/p&gt;

&lt;p&gt;We can avoid some of these scans by detecting&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;if the min and max values saved the the control fields preclude any array-valued measurements or&lt;/li&gt;
	&lt;li&gt;if we have already scanned this data field for another indexed key (e.g. the compound index defined on control.min.x and control.max.x might try to scan data.x twice).&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;There may be other conditions under which we can avoid an unnecessary scan, and we should investigate further&lt;/p&gt;</description>
                <environment></environment>
        <key id="1873686">SERVER-59933</key>
            <summary>Improve array handling for time-series metric 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="9">Done</resolution>
                                        <assignee username="dan.larkin-york@mongodb.com">Dan Larkin-York</assignee>
                                    <reporter username="dan.larkin-york@mongodb.com">Dan Larkin-York</reporter>
                        <labels>
                    </labels>
                <created>Tue, 14 Sep 2021 14:14:43 +0000</created>
                <updated>Tue, 28 Sep 2021 15:01:11 +0000</updated>
                            <resolved>Tue, 28 Sep 2021 15:01:11 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4089271" author="xgen-internal-githook" created="Tue, 28 Sep 2021 14:52:38 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Dan Larkin-York&apos;, &apos;email&apos;: &apos;dan.larkin-york@mongodb.com&apos;, &apos;username&apos;: &apos;dhly-etc&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-59933&quot; title=&quot;Improve array handling for time-series metric indexes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-59933&quot;&gt;&lt;del&gt;SERVER-59933&lt;/del&gt;&lt;/a&gt; Improve array handling for time-series metric indexes&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c1eb9dc5a6b507cff928d73cb43bb6d2656a0abd&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c1eb9dc5a6b507cff928d73cb43bb6d2656a0abd&lt;/a&gt;&lt;/p&gt;</comment>
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