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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-56150] How to lookup to another collection from different database</title>
                <link>https://jira.mongodb.org/browse/SERVER-56150</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;h3&gt;&lt;a name=&quot;ProblemDescription&quot;&gt;&lt;/a&gt;Problem Description&lt;/h3&gt;

&lt;p&gt;How to lookup to another collection from different database&lt;/p&gt;
&lt;h3&gt;&lt;a name=&quot;StepstoReproduce&quot;&gt;&lt;/a&gt;Steps to Reproduce&lt;/h3&gt;

&lt;p&gt;Hi&lt;br/&gt;
I have below example&lt;br/&gt;
1.) &lt;br/&gt;
DB: ABC&lt;br/&gt;
Collection name: testABC&lt;/p&gt;

&lt;p&gt;2.)&lt;br/&gt;
DB: XYZ&lt;br/&gt;
Collection name: testXYZ&lt;/p&gt;

&lt;p&gt;I want to write lookup query to testXYZ from testABC.&lt;/p&gt;

&lt;p&gt;Can you help me out.&lt;/p&gt;
&lt;h3&gt;&lt;a name=&quot;%C2%A0&quot;&gt;&lt;/a&gt;&#160;&lt;/h3&gt;</description>
                <environment></environment>
        <key id="1682189">SERVER-56150</key>
            <summary>How to lookup to another collection from different database</summary>
                <type id="6" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14720&amp;avatarType=issuetype">Question</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="9">Done</resolution>
                                        <assignee username="backlog-server-triage">Backlog - Triage Team</assignee>
                                    <reporter username="ashraf.km@codecraft.co.in">Ashraf KM</reporter>
                        <labels>
                    </labels>
                <created>Sat, 17 Apr 2021 03:56:39 +0000</created>
                <updated>Tue, 6 Dec 2022 01:23:59 +0000</updated>
                            <resolved>Mon, 19 Apr 2021 17:37:00 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="3725662" author="JIRAUSER1257066" created="Mon, 19 Apr 2021 17:36:49 +0000"  >&lt;p&gt;Hi Ashraf KM,&lt;/p&gt;

&lt;p&gt;Thanks for your report. Please note that the SERVER project is for bugs and feature suggestions for the MongoDB server. As this ticket does not appear to be a bug, I will now close it. If you need further assistance troubleshooting, I encourage you to ask our community by posting on the &lt;a href=&quot;https://community.mongodb.com&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;MongoDB Developer Community Forums&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Kind regards,&lt;br/&gt;
Edwin&lt;/p&gt;</comment>
                            <comment id="3723686" author="JIRAUSER1259500" created="Sat, 17 Apr 2021 03:58:28 +0000"  >&lt;p&gt;I have tried this.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://docs.mongodb.com/datalake/reference/pipeline/lookup-stage/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/datalake/reference/pipeline/lookup-stage/&lt;/a&gt;&lt;br/&gt;
but did not work&lt;/p&gt;</comment>
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