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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-49870] The &apos;as&apos; parameter in $lookup could be optional </title>
                <link>https://jira.mongodb.org/browse/SERVER-49870</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;If an &apos;as&apos; param is not provided $lookup could use the foreignField as the output field.&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="1418737">SERVER-49870</key>
            <summary>The &apos;as&apos; parameter in $lookup could be optional </summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="backlog-server-query">Backlog - Query Team</assignee>
                                    <reporter username="mukesh.bhakta@anz.com">Mukesh Bhakta</reporter>
                        <labels>
                    </labels>
                <created>Thu, 23 Jul 2020 23:16:05 +0000</created>
                <updated>Tue, 6 Dec 2022 02:14:33 +0000</updated>
                            <resolved>Tue, 28 Jul 2020 15:41:08 +0000</resolved>
                                                                    <component>Aggregation Framework</component>
                                        <votes>1</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="3310094" author="craig.homa" created="Tue, 28 Jul 2020 15:41:08 +0000"  >&lt;p&gt;The Query team has decided not to pursue this effort. Please see &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=asya&quot; class=&quot;user-hover&quot; rel=&quot;asya&quot;&gt;asya&lt;/a&gt;&apos;s comments above.&lt;/p&gt;</comment>
                            <comment id="3310066" author="asya" created="Tue, 28 Jul 2020 15:30:28 +0000"  >&lt;p&gt;I can see synthesizing new field name maybe from combination of &lt;tt&gt;from&lt;/tt&gt; collection name and &lt;tt&gt;foreignField&lt;/tt&gt; ($lookup from &quot;product&quot;, localField &quot;product_id&quot;, foreignField &quot;_id&quot; should come back as maybe as &quot;products&quot; or &quot;product_id&quot; but never &quot;_id&quot;)&lt;/p&gt;</comment>
                            <comment id="3310059" author="asya" created="Tue, 28 Jul 2020 15:28:22 +0000"  >&lt;p&gt;This seems dangerous.  A common foreign field name is &quot;_id&quot; (looking up foreign key to another collection primary key&quot;.  I don&apos;t think we want to assign it into the primary key for this collection.&lt;/p&gt;</comment>
                            <comment id="3301130" author="jonathan.streets" created="Fri, 24 Jul 2020 16:10:46 +0000"  >&lt;p&gt;hi Mukesh,&lt;br/&gt;
Thank you for the idea to simplify $lookup. We&apos;re assigning this ticket to the appropriate team to be evaluated against our currently planned work. Updates will be posted on this ticket as they happen.&lt;br/&gt;
Jon&lt;/p&gt;</comment>
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