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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-60300] Support pushdown of sugared $group stages</title>
                <link>https://jira.mongodb.org/browse/SERVER-60300</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-60226&quot; title=&quot;Ban sugared $group stages from being pushed down to SBE&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-60226&quot;&gt;&lt;del&gt;SERVER-60226&lt;/del&gt;&lt;/a&gt;, we blocked sugared $group stages such as $bucket/&lt;del&gt;$bucketAuto/&lt;/del&gt;$sortByCount from being pushed down to SBE because $coerceToBool is not supported in SBE and those sugared $group stages may be translated to $group stages with a $coerceToBool expression.&lt;/p&gt;

&lt;p&gt;As soon as we implement $coerceToBool, we should be able to support those stages for pushdown to SBE.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1885924">SERVER-60300</key>
            <summary>Support pushdown of sugared $group stages</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="anna.wawrzyniak@mongodb.com">Anna Wawrzyniak</assignee>
                                    <reporter username="yoonsoo.kim@mongodb.com">Yoon Soo Kim</reporter>
                        <labels>
                    </labels>
                <created>Wed, 29 Sep 2021 05:21:54 +0000</created>
                <updated>Sun, 29 Oct 2023 21:48:04 +0000</updated>
                            <resolved>Tue, 11 Jan 2022 18:00:00 +0000</resolved>
                                                    <fixVersion>5.3.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4281631" author="xgen-internal-githook" created="Fri, 7 Jan 2022 22:42:28 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Anna Wawrzyniak&apos;, &apos;email&apos;: &apos;anna.wawrzyniak@mongodb.com&apos;, &apos;username&apos;: &apos;anna-wawrzyniak&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-60300&quot; title=&quot;Support pushdown of sugared $group stages&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-60300&quot;&gt;&lt;del&gt;SERVER-60300&lt;/del&gt;&lt;/a&gt; Enable pushdown of $bucket and $sortByCount to SBE&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d2410ba51043c227ee26374ff34bab697134ba2a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d2410ba51043c227ee26374ff34bab697134ba2a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4279189" author="JIRAUSER1263795" created="Thu, 6 Jan 2022 19:21:20 +0000"  >&lt;p&gt;$bucket and $sortByCount are desugared in DocumentSource createFromBson into group and sort, and they automatically work with SBE after just marking them as sbeCompatible. However $autoBucket is different.&lt;br/&gt;
DocumentSourceBucketAuto is a real document source independent from DocumentSourceGroup. Based on the documentation here&#160;&lt;a href=&quot;https://docs.mongodb.com/manual/reference/operator/aggregation/bucketAuto/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/manual/reference/operator/aggregation/bucketAuto/&lt;/a&gt;&#160;is looks like the _ids are generated based on the entire set rather than per document.&#160; Since $autoBucket automatically chooses ranges based on the input set of values I don&#8217;t think it can use SBE HashAggStage or any hash-based aggregation and would require its own dedicated SBE stage if we were to push it down. Created &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62401&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/SERVER-62401&lt;/a&gt;&#160;to track that work, as that is out of scope of $group pushdown work.&lt;/p&gt;</comment>
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            <issuekey id="1959660">SERVER-62401</issuekey>
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            <issuelink>
            <issuekey id="1883255">SERVER-60226</issuekey>
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