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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>
    </build-info>


<item>
            <title>[DOCS-14965] [Server] Enable all accumulators for $group pushdown</title>
                <link>https://jira.mongodb.org/browse/DOCS-14965</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;div class=&quot;panel&quot; style=&quot;background-color: #c2d2c2;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelHeader&quot; style=&quot;border-bottom-width: 1px;background-color: #239eb0;&quot;&gt;&lt;b&gt;Downstream Change Summary&lt;/b&gt;&lt;/div&gt;&lt;div class=&quot;panelContent&quot; style=&quot;background-color: #c2d2c2;&quot;&gt;
&lt;p&gt;The explain plan will now contain a GROUP stage in the winninPlan part of the queryPlanner section of the explain plan. For an example see,&lt;/p&gt;

&lt;p&gt;&quot;winningPlan&quot; : {&lt;br/&gt;
 &quot;queryPlan&quot; : {&lt;br/&gt;
 &quot;stage&quot; : &quot;GROUP&quot;, &amp;lt;--- new node.&lt;br/&gt;
 &quot;planNodeId&quot; : 2,&lt;br/&gt;
 &quot;inputStage&quot; : {&lt;br/&gt;
 &quot;stage&quot; : &quot;COLLSCAN&quot;,&lt;br/&gt;
 &quot;planNodeId&quot; : 1,&lt;br/&gt;
 &quot;filter&quot; : {&lt;/p&gt;

&lt;p&gt;},&lt;br/&gt;
 &quot;direction&quot; : &quot;forward&quot;&lt;br/&gt;
 }&lt;br/&gt;
 },&lt;br/&gt;
 &quot;slotBasedPlan&quot; : &lt;/p&gt;
&lt;div class=&quot;error&quot;&gt;&lt;span class=&quot;error&quot;&gt;Unknown macro: {
 &amp;quot;slots&amp;quot; }&lt;/span&gt; &lt;/div&gt;
&lt;p&gt;&quot;,&lt;br/&gt;
 &quot;stages&quot; : &quot;&lt;span class=&quot;error&quot;&gt;&amp;#91;2&amp;#93;&lt;/span&gt; mkbson s11 &lt;span class=&quot;error&quot;&gt;&amp;#91;_id = s7, s = s10&amp;#93;&lt;/span&gt; true false \n&lt;span class=&quot;error&quot;&gt;&amp;#91;2&amp;#93;&lt;/span&gt; project &lt;span class=&quot;error&quot;&gt;&amp;#91;s10 = doubleDoubleSumFinalize (s9)&amp;#93;&lt;/span&gt; \n&lt;span class=&quot;error&quot;&gt;&amp;#91;2&amp;#93;&lt;/span&gt; group &lt;span class=&quot;error&quot;&gt;&amp;#91;s7&amp;#93;&lt;/span&gt; &lt;span class=&quot;error&quot;&gt;&amp;#91;s9 = aggDoubleDoubleSum (s8)&amp;#93;&lt;/span&gt; \n&lt;span class=&quot;error&quot;&gt;&amp;#91;2&amp;#93;&lt;/span&gt; project &lt;span class=&quot;error&quot;&gt;&amp;#91;s8 = getField (s4, \&amp;quot;x\&amp;quot;)&amp;#93;&lt;/span&gt; \n&lt;span class=&quot;error&quot;&gt;&amp;#91;2&amp;#93;&lt;/span&gt; project &lt;span class=&quot;error&quot;&gt;&amp;#91;s7 = fillEmpty (s6, null)&amp;#93;&lt;/span&gt; \n&lt;span class=&quot;error&quot;&gt;&amp;#91;2&amp;#93;&lt;/span&gt; project &lt;span class=&quot;error&quot;&gt;&amp;#91;s6 = getField (s4, \&amp;quot;_idMod10\&amp;quot;)&amp;#93;&lt;/span&gt; \n&lt;span class=&quot;error&quot;&gt;&amp;#91;1&amp;#93;&lt;/span&gt; scan s4 s5 none none none none [] @\&quot;9d840c15-b98e-4daf-a0d5-e79fdfa85311\&quot; true false &quot;&lt;br/&gt;
 }&lt;br/&gt;
 },&lt;/p&gt;
&lt;/div&gt;&lt;/div&gt;
&lt;h2&gt;&lt;a name=&quot;DescriptionofLinkedTicket&quot;&gt;&lt;/a&gt;Description of Linked Ticket&lt;/h2&gt;

&lt;p&gt;&lt;a href=&quot;https://docs.mongodb.com/manual/reference/operator/aggregation/group/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/manual/reference/operator/aggregation/group/&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="1942421">DOCS-14965</key>
            <summary>[Server] Enable all accumulators for $group pushdown</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="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="backlog-server-pm">Backlog - Core Eng Program Management Team</reporter>
                        <labels>
                            <label>backlog</label>
                            <label>request</label>
                    </labels>
                <created>Fri, 3 Dec 2021 20:49:25 +0000</created>
                <updated>Mon, 22 Jan 2024 15:55:54 +0000</updated>
                                                            <fixVersion>5.2.0</fixVersion>
                                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="4230502" author="dbeng-pm-bot" created="Fri, 3 Dec 2021 20:49:31 +0000"  >&lt;p&gt;&lt;em&gt;Downstream changes updated for upstream &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-61569&quot; title=&quot;Enable all accumulators for $group pushdown&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-61569&quot;&gt;&lt;del&gt;SERVER-61569&lt;/del&gt;&lt;/a&gt;:&lt;/em&gt; &lt;br/&gt;
The explain plan will now contain a GROUP stage in the winninPlan part of the queryPlanner section of the explain plan. For an example see,&lt;/p&gt;

&lt;p&gt;	&quot;winningPlan&quot; : {&lt;br/&gt;
			&quot;queryPlan&quot; : {&lt;br/&gt;
				&quot;stage&quot; : &quot;GROUP&quot;,   &amp;lt;--- new node.&lt;br/&gt;
				&quot;planNodeId&quot; : 2,&lt;br/&gt;
				&quot;inputStage&quot; : {&lt;br/&gt;
					&quot;stage&quot; : &quot;COLLSCAN&quot;,&lt;br/&gt;
					&quot;planNodeId&quot; : 1,&lt;br/&gt;
					&quot;filter&quot; : {&lt;/p&gt;

&lt;p&gt;					},&lt;br/&gt;
					&quot;direction&quot; : &quot;forward&quot;&lt;br/&gt;
				}&lt;br/&gt;
			},&lt;br/&gt;
			&quot;slotBasedPlan&quot; : {&lt;br/&gt;
				&quot;slots&quot; : &quot;$$RESULT=s11 env: &lt;/p&gt;
{ s2 = Nothing (SEARCH_META), s3 = 1638564533061 (NOW), s1 = TimeZoneDatabase(America/Argentina/Jujuy...America/Eirunepe) (timeZoneDB) }
&lt;p&gt;&quot;,&lt;br/&gt;
				&quot;stages&quot; : &quot;&lt;span class=&quot;error&quot;&gt;&amp;#91;2&amp;#93;&lt;/span&gt; mkbson s11 &lt;span class=&quot;error&quot;&gt;&amp;#91;_id = s7, s = s10&amp;#93;&lt;/span&gt; true false \n&lt;span class=&quot;error&quot;&gt;&amp;#91;2&amp;#93;&lt;/span&gt; project &lt;span class=&quot;error&quot;&gt;&amp;#91;s10 = doubleDoubleSumFinalize (s9)&amp;#93;&lt;/span&gt; \n&lt;span class=&quot;error&quot;&gt;&amp;#91;2&amp;#93;&lt;/span&gt; group &lt;span class=&quot;error&quot;&gt;&amp;#91;s7&amp;#93;&lt;/span&gt; &lt;span class=&quot;error&quot;&gt;&amp;#91;s9 = aggDoubleDoubleSum (s8)&amp;#93;&lt;/span&gt; \n&lt;span class=&quot;error&quot;&gt;&amp;#91;2&amp;#93;&lt;/span&gt; project &lt;span class=&quot;error&quot;&gt;&amp;#91;s8 = getField (s4, \&amp;quot;x\&amp;quot;)&amp;#93;&lt;/span&gt; \n&lt;span class=&quot;error&quot;&gt;&amp;#91;2&amp;#93;&lt;/span&gt; project &lt;span class=&quot;error&quot;&gt;&amp;#91;s7 = fillEmpty (s6, null)&amp;#93;&lt;/span&gt; \n&lt;span class=&quot;error&quot;&gt;&amp;#91;2&amp;#93;&lt;/span&gt; project &lt;span class=&quot;error&quot;&gt;&amp;#91;s6 = getField (s4, \&amp;quot;_idMod10\&amp;quot;)&amp;#93;&lt;/span&gt; \n&lt;span class=&quot;error&quot;&gt;&amp;#91;1&amp;#93;&lt;/span&gt; scan s4 s5 none none none none [] @\&quot;9d840c15-b98e-4daf-a0d5-e79fdfa85311\&quot; true false &quot;&lt;br/&gt;
			}&lt;br/&gt;
		},&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10320">
                    <name>Documented</name>
                                            <outwardlinks description="documents">
                                        <issuelink>
            <issuekey id="1927702">SERVER-61569</issuekey>
        </issuelink>
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