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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-36113] Add ability to perform $exchange when shard key is hashed</title>
                <link>https://jira.mongodb.org/browse/SERVER-36113</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This will not be done as part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35904&quot; title=&quot;Implement logic to detect if merging half of pipeline conserves but possibly renames the shard key&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35904&quot;&gt;&lt;del&gt;SERVER-35904&lt;/del&gt;&lt;/a&gt;/&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35905&quot; title=&quot;Plug pieces together to perform a distributed $exchange when applicable&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35905&quot;&gt;&lt;del&gt;SERVER-35905&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="571253">SERVER-36113</key>
            <summary>Add ability to perform $exchange when shard key is hashed</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="-1">Unassigned</assignee>
                                    <reporter username="charlie.swanson@mongodb.com">Charlie Swanson</reporter>
                        <labels>
                    </labels>
                <created>Fri, 13 Jul 2018 14:05:02 +0000</created>
                <updated>Sun, 29 Oct 2023 22:29:51 +0000</updated>
                            <resolved>Mon, 1 Oct 2018 18:28:44 +0000</resolved>
                                                    <fixVersion>4.1.4</fixVersion>
                                    <component>Aggregation Framework</component>
                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="2019531" author="xgen-internal-githook" created="Mon, 1 Oct 2018 18:26:45 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Martin Neupauer&apos;, &apos;email&apos;: &apos;martin.neupauer@mongodb.com&apos;, &apos;username&apos;: &apos;MartinNeupauer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36113&quot; title=&quot;Add ability to perform $exchange when shard key is hashed&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36113&quot;&gt;&lt;del&gt;SERVER-36113&lt;/del&gt;&lt;/a&gt; Add ability to perform $exchange when shard key is hashed&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f9ae642a5cab2be1c4592d67f722b849b5151739&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f9ae642a5cab2be1c4592d67f722b849b5151739&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1963091" author="martin.neupauer" created="Wed, 1 Aug 2018 17:03:59 +0000"  >&lt;p&gt;As per comment from Charlie I&apos;m keeping this ticket open.&lt;/p&gt;</comment>
                            <comment id="1963059" author="xgen-internal-githook" created="Wed, 1 Aug 2018 16:49:52 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Martin Neupauer&apos;, &apos;email&apos;: &apos;martin.neupauer@mongodb.com&apos;, &apos;username&apos;: &apos;MartinNeupauer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36314&quot; title=&quot;Add unit tests for the parsing of $exchange producer&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36314&quot;&gt;&lt;del&gt;SERVER-36314&lt;/del&gt;&lt;/a&gt; Add unit tests for the parsing of $exchange producer&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36113&quot; title=&quot;Add ability to perform $exchange when shard key is hashed&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36113&quot;&gt;&lt;del&gt;SERVER-36113&lt;/del&gt;&lt;/a&gt; Add ability to perform $exchange when shard key is hashed&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f263446414cfdcc0e0caf24e7f61a058faf382ef&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f263446414cfdcc0e0caf24e7f61a058faf382ef&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1963044" author="charlie.swanson" created="Wed, 1 Aug 2018 16:42:04 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=martin.neupauer&quot; class=&quot;user-hover&quot; rel=&quot;martin.neupauer&quot;&gt;martin.neupauer&lt;/a&gt; I understand your recent code review adds the functionality to the $exchange producer stage - but I think this ticket should remain open after pushing those changes. I&apos;d like some ticket to track the work to test that this works in an actual sharded cluster, and I don&apos;t necessarily want that ticket to be &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35905&quot; title=&quot;Plug pieces together to perform a distributed $exchange when applicable&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35905&quot;&gt;&lt;del&gt;SERVER-35905&lt;/del&gt;&lt;/a&gt;, just to reduce the test surface area and friction in code review. Sound reasonable?&lt;/p&gt;

&lt;p&gt;If you&apos;d prefer, we could close this ticket and open a new one.&lt;/p&gt;</comment>
                    </comments>
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