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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>[DOCS-15512] [Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines</title>
                <link>https://jira.mongodb.org/browse/DOCS-15512</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;p&gt;&lt;em&gt;&lt;a href=&quot;https://github.com/mongodb/docs/tree/master/source/reference/method/db.collection.aggregate.txt&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;docs/reference/method/db.collection.aggregate&lt;/a&gt;&lt;/em&gt;&lt;br/&gt;
&#9733;&#9733;&#9733;&#9734;&#9734; Somewhat helpful&lt;br/&gt;
&lt;em&gt;Average rating: 3.77 (53)&lt;/em&gt;&lt;br/&gt;
&lt;b&gt;Qualifiers:&lt;/b&gt;&#160;Something wrong/missing&lt;br/&gt;
&#160;&lt;br/&gt;
In the &quot;Returns&quot; section, it is mentioned that &quot;If the pipeline includes the $out operator, aggregate() returns an empty cursor.&quot;It should also be mentioned that an empty cursor is returned when the $merge operator is included in the pipeline.&lt;br/&gt;
&lt;b&gt;User Email:&lt;/b&gt;&#160;&lt;span class=&quot;nobr&quot;&gt;&lt;a href=&quot;mailto:idmadj@gmail.com&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;idmadj@gmail.com&lt;sup&gt;&lt;img class=&quot;rendericon&quot; src=&quot;https://jira.mongodb.org/images/icons/mail_small.gif&quot; height=&quot;12&quot; width=&quot;13&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/sup&gt;&lt;/a&gt;&lt;/span&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2101763">DOCS-15512</key>
            <summary>[Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="kenneth.dyer@mongodb.com">Kenneth Dyer</assignee>
                                    <reporter username="ashley.brown@mongodb.com">Ashley Brown</reporter>
                        <labels>
                            <label>Onboarding</label>
                    </labels>
                <created>Thu, 28 Jul 2022 17:52:49 +0000</created>
                <updated>Mon, 30 Oct 2023 22:12:42 +0000</updated>
                            <resolved>Wed, 18 Jan 2023 21:00:16 +0000</resolved>
                                                    <fixVersion>Server_Docs_20231030</fixVersion>
                                    <component>manual</component>
                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="5124539" author="xgen-internal-githook" created="Thu, 19 Jan 2023 17:03:48 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;jmd-mongo&apos;, &apos;email&apos;: &apos;73852296+jmd-mongo@users.noreply.github.com&apos;, &apos;username&apos;: &apos;jmd-mongo&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-15512&quot; title=&quot;[Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-15512&quot;&gt;&lt;del&gt;DOCS-15512&lt;/del&gt;&lt;/a&gt; Adds $merge to db.collection.aggregate return (#2376) (#2410) (#2427)&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-15512&quot; title=&quot;[Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-15512&quot;&gt;&lt;del&gt;DOCS-15512&lt;/del&gt;&lt;/a&gt; Adds  to db.collection.aggregate return&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Fixes per Sarah Olsen&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Fixes per Joe&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Co-authored-by: Kenneth P. J. Dyer &amp;lt;93145796+kennethdyer@users.noreply.github.com&amp;gt;&lt;br/&gt;
Branch: v6.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/docs-mongodb-internal/commit/3ad9ea09e390e090d191cab9c38d105aedcb151c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/docs-mongodb-internal/commit/3ad9ea09e390e090d191cab9c38d105aedcb151c&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5122053" author="xgen-internal-githook" created="Wed, 18 Jan 2023 20:44:13 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kenneth P. J. Dyer&apos;, &apos;email&apos;: &apos;93145796+kennethdyer@users.noreply.github.com&apos;, &apos;username&apos;: &apos;kennethdyer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-15512&quot; title=&quot;[Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-15512&quot;&gt;&lt;del&gt;DOCS-15512&lt;/del&gt;&lt;/a&gt; Adds $merge to db.collection.aggregate return (#2376) (#2411)&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-15512&quot; title=&quot;[Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-15512&quot;&gt;&lt;del&gt;DOCS-15512&lt;/del&gt;&lt;/a&gt; Adds  to db.collection.aggregate return&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Fixes per Sarah Olsen&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Fixes per Joe&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/docs-mongodb-internal/commit/69e5d69b3cdadcc789fc261e64881fc573fcf62c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/docs-mongodb-internal/commit/69e5d69b3cdadcc789fc261e64881fc573fcf62c&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="5122051" author="xgen-internal-githook" created="Wed, 18 Jan 2023 20:44:03 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kenneth P. J. Dyer&apos;, &apos;email&apos;: &apos;93145796+kennethdyer@users.noreply.github.com&apos;, &apos;username&apos;: &apos;kennethdyer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-15512&quot; title=&quot;[Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-15512&quot;&gt;&lt;del&gt;DOCS-15512&lt;/del&gt;&lt;/a&gt; Adds $merge to db.collection.aggregate return (#2376) (#2412)&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-15512&quot; title=&quot;[Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-15512&quot;&gt;&lt;del&gt;DOCS-15512&lt;/del&gt;&lt;/a&gt; Adds  to db.collection.aggregate return&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Fixes per Sarah Olsen&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Fixes per Joe&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/docs-mongodb-internal/commit/ea6f2b7b35758b947866e1bc026c8a9f5a325c3f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/docs-mongodb-internal/commit/ea6f2b7b35758b947866e1bc026c8a9f5a325c3f&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="5122008" author="xgen-internal-githook" created="Wed, 18 Jan 2023 20:31:16 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kenneth P. J. Dyer&apos;, &apos;email&apos;: &apos;93145796+kennethdyer@users.noreply.github.com&apos;, &apos;username&apos;: &apos;kennethdyer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-15512&quot; title=&quot;[Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-15512&quot;&gt;&lt;del&gt;DOCS-15512&lt;/del&gt;&lt;/a&gt; Adds $merge to db.collection.aggregate return (#2376) (#2409)&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-15512&quot; title=&quot;[Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-15512&quot;&gt;&lt;del&gt;DOCS-15512&lt;/del&gt;&lt;/a&gt; Adds  to db.collection.aggregate return&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Fixes per Sarah Olsen&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Fixes per Joe&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/docs-mongodb-internal/commit/1212eea97d1b31f822164551756c0d043644400e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/docs-mongodb-internal/commit/1212eea97d1b31f822164551756c0d043644400e&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="5122007" author="xgen-internal-githook" created="Wed, 18 Jan 2023 20:31:08 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kenneth P. J. Dyer&apos;, &apos;email&apos;: &apos;93145796+kennethdyer@users.noreply.github.com&apos;, &apos;username&apos;: &apos;kennethdyer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-15512&quot; title=&quot;[Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-15512&quot;&gt;&lt;del&gt;DOCS-15512&lt;/del&gt;&lt;/a&gt; Adds $merge to db.collection.aggregate return (#2376) (#2410)&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-15512&quot; title=&quot;[Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-15512&quot;&gt;&lt;del&gt;DOCS-15512&lt;/del&gt;&lt;/a&gt; Adds  to db.collection.aggregate return&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Fixes per Sarah Olsen&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Fixes per Joe&lt;br/&gt;
Branch: v6.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/docs-mongodb-internal/commit/4e5670ad2d5f6faa23cf68a5906dd9743fb8ab88&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/docs-mongodb-internal/commit/4e5670ad2d5f6faa23cf68a5906dd9743fb8ab88&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="5121462" author="xgen-internal-githook" created="Wed, 18 Jan 2023 17:40:44 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kenneth P. J. Dyer&apos;, &apos;email&apos;: &apos;93145796+kennethdyer@users.noreply.github.com&apos;, &apos;username&apos;: &apos;kennethdyer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-15512&quot; title=&quot;[Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-15512&quot;&gt;&lt;del&gt;DOCS-15512&lt;/del&gt;&lt;/a&gt; Adds $merge to db.collection.aggregate return (#2376)&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-15512&quot; title=&quot;[Server] [Feedback] Investigate user feedback about $merge operator in aggregation pipelines&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-15512&quot;&gt;&lt;del&gt;DOCS-15512&lt;/del&gt;&lt;/a&gt; Adds  to db.collection.aggregate return&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Fixes per Sarah Olsen&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Fixes per Joe&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/docs-mongodb-internal/commit/3cac5fbd458014482828e172f43c8c2d9dcc7e55&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/docs-mongodb-internal/commit/3cac5fbd458014482828e172f43c8c2d9dcc7e55&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
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