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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-61323] Optimize $geoNear minDistance bounds on time-series metrics</title>
                <link>https://jira.mongodb.org/browse/SERVER-61323</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;After &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-58602&quot; title=&quot;Rewrite $geoNear to $geoWithin + compute distance + $sort&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-58602&quot;&gt;&lt;del&gt;SERVER-58602&lt;/del&gt;&lt;/a&gt;, a $geoNear stage operating on time-series measurement field is implemented as separate stages for the filtering, projection, and sort.  The &apos;maxDistance&apos; argument becomes a $geoWithin predicate, which can generate index bounds when a 2d or 2dsphere index is available.&lt;/p&gt;

&lt;p&gt;We could do something similar for &apos;minDistance&apos;.  A few ideas are:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;For a spherical query, create an &quot;inside-out&quot; $geoWithin: center it around an antipodal point, with a radius of pi - minDistance.&lt;/li&gt;
	&lt;li&gt;For a flat query, create a negated $geoWithin.  Use a slightly smaller radius, perhaps (minDistance * (1 - epsilon)), to avoid excluding points exactly minDistance from the query.&lt;/li&gt;
	&lt;li&gt;Introduce a new shape operator, similar to $center and $centerSphere but with a minDistance argument in addition to maxDistance.&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="1920791">SERVER-61323</key>
            <summary>Optimize $geoNear minDistance bounds on time-series metrics</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="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="3">Duplicate</resolution>
                                        <assignee username="backlog-query-optimization">Backlog - Query Optimization</assignee>
                                    <reporter username="david.percy@mongodb.com">David Percy</reporter>
                        <labels>
                    </labels>
                <created>Mon, 8 Nov 2021 20:10:22 +0000</created>
                <updated>Tue, 6 Dec 2022 00:48:33 +0000</updated>
                            <resolved>Fri, 19 Nov 2021 16:07:34 +0000</resolved>
                                                                                        <votes>0</votes>
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