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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-71752] Estimate non-histogrammable types using heuristic selectivity</title>
                <link>https://jira.mongodb.org/browse/SERVER-71752</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, we estimate non-histogrammable types as the total count of values for that type (so any predicate matching an object will be estimated as the total count of objects). We can do better by instead estimating this as kDefaultSelectivity*numType (i.e. applying a heuristic estimate to the count for that type).&lt;/p&gt;</description>
                <environment></environment>
        <key id="2199452">SERVER-71752</key>
            <summary>Estimate non-histogrammable types using heuristic selectivity</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="13201">Fixed</resolution>
                                        <assignee username="alya.berciu@mongodb.com">Alya Berciu</assignee>
                                    <reporter username="alya.berciu@mongodb.com">Alya Berciu</reporter>
                        <labels>
                    </labels>
                <created>Thu, 1 Dec 2022 11:11:33 +0000</created>
                <updated>Sun, 29 Oct 2023 21:29:51 +0000</updated>
                            <resolved>Thu, 12 Jan 2023 10:35:16 +0000</resolved>
                                                    <fixVersion>6.3.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="5108461" author="xgen-internal-githook" created="Thu, 12 Jan 2023 10:34:35 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Alya Berciu&apos;, &apos;email&apos;: &apos;alya.berciu@mongodb.com&apos;, &apos;username&apos;: &apos;alyacb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-71752&quot; title=&quot;Estimate non-histogrammable types using heuristic selectivity&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-71752&quot;&gt;&lt;del&gt;SERVER-71752&lt;/del&gt;&lt;/a&gt; Estimate non-histogrammable types heuristically&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/55083b4f23060fd46142215ce882f0b5b3c56abd&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/55083b4f23060fd46142215ce882f0b5b3c56abd&lt;/a&gt;&lt;/p&gt;</comment>
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