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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-79724] Get rid of the AggregationTargeter::TargetingPolicy::kPassthrough and the entire &#8220;passthrough&#8221; code path in agg</title>
                <link>https://jira.mongodb.org/browse/SERVER-79724</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This code path should be unnecessary if the kAnyShard code path can handle all the cases with unsharded collections and route accordingly.&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;Eliminate LiteParsedPipeline::allowedToPassthroughFromMongos() and LiteParsedDocumentSource::allowedToPassthroughFromMongos()&lt;/li&gt;
	&lt;li&gt;Delete runPipelineOnPrimaryShard()&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="2409212">SERVER-79724</key>
            <summary>Get rid of the AggregationTargeter::TargetingPolicy::kPassthrough and the entire &#8220;passthrough&#8221; code path in agg</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="mihai.andrei@mongodb.com">Mihai Andrei</assignee>
                                    <reporter username="david.storch@mongodb.com">David Storch</reporter>
                        <labels>
                            <label>pm3229-m1</label>
                    </labels>
                <created>Fri, 4 Aug 2023 14:49:20 +0000</created>
                <updated>Tue, 30 Jan 2024 13:14:48 +0000</updated>
                            <resolved>Thu, 7 Sep 2023 03:44:18 +0000</resolved>
                                                    <fixVersion>7.2.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="5685119" author="xgen-internal-githook" created="Thu, 7 Sep 2023 01:18:29 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Mihai Andrei&apos;, &apos;email&apos;: &apos;mihai.andrei@mongodb.com&apos;, &apos;username&apos;: &apos;mtandrei&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-79724&quot; title=&quot;Get rid of the AggregationTargeter::TargetingPolicy::kPassthrough and the entire &#8220;passthrough&#8221; code path in agg&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-79724&quot;&gt;&lt;del&gt;SERVER-79724&lt;/del&gt;&lt;/a&gt; Delete &apos;AggregationTargeter::TargetingPolicy::kPassthrough&apos; and the entire passthrough code path in aggregate&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/780b1a0262382c91402ceccfa34110651b1f10ff&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/780b1a0262382c91402ceccfa34110651b1f10ff&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5680837" author="xgen-internal-githook" created="Tue, 5 Sep 2023 18:46:15 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Mihai Andrei&apos;, &apos;email&apos;: &apos;mihai.andrei@mongodb.com&apos;, &apos;username&apos;: &apos;mtandrei&apos;}
&lt;p&gt;Message: Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-79724&quot; title=&quot;Get rid of the AggregationTargeter::TargetingPolicy::kPassthrough and the entire &#8220;passthrough&#8221; code path in agg&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-79724&quot;&gt;&lt;del&gt;SERVER-79724&lt;/del&gt;&lt;/a&gt; Delete &apos;AggregationTargeter::TargetingPolicy::kPassthrough&apos; and the entire passthrough code path in aggregate&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit cec118fc9cadfeb50a84a6954e7352e3e2614fc2.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d0c8613d726198213431b0b4eb6a986c3c38f9c7&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d0c8613d726198213431b0b4eb6a986c3c38f9c7&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5675824" author="xgen-internal-githook" created="Fri, 1 Sep 2023 20:28:08 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Mihai Andrei&apos;, &apos;email&apos;: &apos;mihai.andrei@mongodb.com&apos;, &apos;username&apos;: &apos;mtandrei&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-79724&quot; title=&quot;Get rid of the AggregationTargeter::TargetingPolicy::kPassthrough and the entire &#8220;passthrough&#8221; code path in agg&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-79724&quot;&gt;&lt;del&gt;SERVER-79724&lt;/del&gt;&lt;/a&gt; Delete &apos;AggregationTargeter::TargetingPolicy::kPassthrough&apos; and the entire passthrough code path in aggregate&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/cec118fc9cadfeb50a84a6954e7352e3e2614fc2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/cec118fc9cadfeb50a84a6954e7352e3e2614fc2&lt;/a&gt;&lt;/p&gt;</comment>
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                            <customfieldvalue>This patch changes shard targeting aggregation to no longer have a special case for unsharded collections (that is, aggregate command requests that target an unsharded collection use the same path as those which target a sharded collection). The effect of this is mostly invisible to the user, except for explain output, which in the case of an unsharded collection will put the output under the &amp;#39;shards&amp;#39; field (previously, this was not done). &lt;br/&gt;
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