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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[DRIVERS-1613] Support exact count distinct stage and accumulator</title>
                <link>https://jira.mongodb.org/browse/DRIVERS-1613</link>
                <project id="10980" key="DRIVERS">Drivers</project>
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&lt;h4&gt;&lt;a name=&quot;Summary&quot;&gt;&lt;/a&gt;Summary&lt;/h4&gt;
&lt;p&gt;Add a concise way to compute the number of distinct values.&lt;/p&gt;

&lt;h4&gt;&lt;a name=&quot;Motivation&quot;&gt;&lt;/a&gt;Motivation&lt;/h4&gt;
&lt;p&gt;Count distinct is one of the most common statistics used in analytics. While it is possible to express it in MQL, it is much less concise than in SQL, especially when multiple count distinct values need to be computed over the same input. Moreover, users are confused about what algorithm is recommended.&lt;/p&gt;

&lt;h4&gt;&lt;a name=&quot;CastofCharacters&quot;&gt;&lt;/a&gt;Cast of Characters&lt;/h4&gt;
&lt;ul&gt;
	&lt;li&gt;Product Owner: Katya Kamenieva&lt;/li&gt;
	&lt;li&gt;Project Lead: Pawel Terlecki&lt;/li&gt;
	&lt;li&gt;Program Manager: Craig Homa&lt;/li&gt;
	&lt;li&gt;Drivers Contact:&lt;/li&gt;
&lt;/ul&gt;



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&lt;p&gt;&lt;a href=&quot;http://tinyurl.com/y7xx7xjv&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Scope Document&lt;/a&gt;&lt;br/&gt;
&lt;a href=&quot;http://tinyurl.com/ybxmnaux&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Technical Design Document&lt;/a&gt;&lt;br/&gt;
&lt;a href=&quot;http://tinyurl.com/yav3r7f3&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Product Description&lt;/a&gt;&lt;/p&gt;
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        <key id="1646279">DRIVERS-1613</key>
            <summary>Support exact count distinct stage and accumulator</summary>
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                                            <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="12300">Won&apos;t Do</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="backlog-server-pm">Backlog - Core Eng Program Management Team</reporter>
                        <labels>
                    </labels>
                <created>Thu, 11 Mar 2021 00:28:28 +0000</created>
                <updated>Wed, 22 Sep 2021 20:31:13 +0000</updated>
                            <resolved>Mon, 15 Mar 2021 23:14:48 +0000</resolved>
                                                                            <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3664699" author="alexander.golin" created="Mon, 15 Mar 2021 16:39:26 +0000"  >&lt;p&gt;Triage: Closing out, only needed for Java and C# so we will not be tracking with a DRIVERS ticket. &lt;/p&gt;</comment>
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