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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <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-68490] Integrate histogram estimation with the statistics module and the optimizer</title>
                <link>https://jira.mongodb.org/browse/SERVER-68490</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The statistics module should provide the following functionality:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;ability to build histograms and statistics against mongodb collections,&lt;/li&gt;
	&lt;li&gt;an &quot;analyze&quot; command that triggers the statistics collection process,&lt;/li&gt;
	&lt;li&gt;a way to access a cache object that knows how to retrieve statistics from disk, and provides&#160;access to collection histograms keyed by paths.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Based on this functionality this task:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;CE should be extended to request histograms for certain collections and paths, and use them when available.&lt;/li&gt;
	&lt;li&gt;Implement basic integration (JS) tests that test CE accuracy against data stored in a collection.
	&lt;ul&gt;
		&lt;li&gt;Statistics is built via an &quot;analyze&quot; command.&lt;/li&gt;
		&lt;li&gt;The JS tests use the golden-test framework implemented by &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-67415&quot; title=&quot;Expose golden-test framework to jstests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-67415&quot;&gt;&lt;del&gt;SERVER-67415&lt;/del&gt;&lt;/a&gt;.&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="2104431">SERVER-68490</key>
            <summary>Integrate histogram estimation with the statistics module and the optimizer</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="timour.katchaounov@mongodb.com">Timour Katchaounov</reporter>
                        <labels>
                            <label>M6</label>
                    </labels>
                <created>Tue, 2 Aug 2022 12:54:50 +0000</created>
                <updated>Sun, 29 Oct 2023 21:35:03 +0000</updated>
                            <resolved>Wed, 26 Oct 2022 10:01:41 +0000</resolved>
                                                    <fixVersion>6.2.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4953537" author="xgen-internal-githook" created="Thu, 3 Nov 2022 20:43:30 +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-68490&quot; title=&quot;Integrate histogram estimation with the statistics module and the optimizer&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68490&quot;&gt;&lt;del&gt;SERVER-68490&lt;/del&gt;&lt;/a&gt; Robustify ce_histogram.js&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/fd269ec2272cddb55405efc17828fb88abd2d1f9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/fd269ec2272cddb55405efc17828fb88abd2d1f9&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4949062" author="xgen-internal-githook" created="Wed, 2 Nov 2022 17:20:12 +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-68490&quot; title=&quot;Integrate histogram estimation with the statistics module and the optimizer&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68490&quot;&gt;&lt;del&gt;SERVER-68490&lt;/del&gt;&lt;/a&gt; Remove ce_histogram.js log&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ca80f7fd6d45668710fa836c8d35d7da43f0cab6&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ca80f7fd6d45668710fa836c8d35d7da43f0cab6&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4927975" author="xgen-internal-githook" created="Wed, 26 Oct 2022 10:00:33 +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-68490&quot; title=&quot;Integrate histogram estimation with the statistics module and the optimizer&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68490&quot;&gt;&lt;del&gt;SERVER-68490&lt;/del&gt;&lt;/a&gt; Complete integration of histogram CE&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ccbc2b483f7ef25df8c9f35e58ce235909179f12&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ccbc2b483f7ef25df8c9f35e58ce235909179f12&lt;/a&gt;&lt;/p&gt;</comment>
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                                                                <inwardlinks description="is depended on by">
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            <issuekey id="2152507">SERVER-70241</issuekey>
        </issuelink>
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                            <issuelinktype id="10010">
                    <name>Duplicate</name>
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            <issuekey id="2111838">SERVER-68748</issuekey>
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