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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-83419] Invalid collection name is not valid for search pushdown</title>
                <link>https://jira.mongodb.org/browse/SERVER-83419</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;For $search in sub-pipeline, we check if it is eligible to pushdown &lt;a href=&quot;https://github.com/10gen/mongo/blob/zixuan/SERVER-82725/src/mongo/db/pipeline/process_interface/common_mongod_process_interface.cpp#L483&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;, but when the collection name is not valid we &lt;a href=&quot;https://github.com/10gen/mongo/blob/zixuan/SERVER-82725/src/mongo/db/pipeline/pipeline_d.cpp#L458&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;skip the pushdown&lt;/a&gt;. In this case, DocumentSourceSearch won&apos;t be pushed down into SBE and also not desugared.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2503607">SERVER-83419</key>
            <summary>Invalid collection name is not valid for search pushdown</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="alberto.massari@mongodb.com">Alberto Massari</assignee>
                                    <reporter username="zixuan.zhuang@mongodb.com">Zixuan Zhuang</reporter>
                        <labels>
                    </labels>
                <created>Fri, 17 Nov 2023 19:47:02 +0000</created>
                <updated>Thu, 30 Nov 2023 07:12:23 +0000</updated>
                            <resolved>Thu, 30 Nov 2023 07:12:22 +0000</resolved>
                                                    <fixVersion>7.3.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="5914148" author="xgen-internal-githook" created="Wed, 29 Nov 2023 22:51:21 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Alberto Massari&apos;, &apos;email&apos;: &apos;alberto.massari@mongodb.com&apos;, &apos;username&apos;: &apos;albymassari&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83419&quot; title=&quot;Invalid collection name is not valid for search pushdown&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83419&quot;&gt;&lt;del&gt;SERVER-83419&lt;/del&gt;&lt;/a&gt; Aggregation stages on missing collections are pushed down to SBE&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/aba841cbb6acde79ce30ccabcbc614be7dc0c216&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/aba841cbb6acde79ce30ccabcbc614be7dc0c216&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5895607" author="ted.tuckman" created="Tue, 21 Nov 2023 15:25:35 +0000"  >&lt;p&gt;I looked into this a little bit. It seems to me like this isn&apos;t actually a search specific issue. Right now from the code linked above that SBE will bail out if there is a $unionWith on a collection that doesn&apos;t exist. It seems to me that SBE should be able to deal with this case and treat it as a normal plan that will immediately return EOF. Discussed a little bit with &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=mihai.andrei%40mongodb.com&quot; class=&quot;user-hover&quot; rel=&quot;mihai.andrei@mongodb.com&quot;&gt;mihai.andrei@mongodb.com&lt;/a&gt; who came to the same conclusion. Putting this back up for triage on QE. The linked BF is hot, so would be good for someone more familiar with SBE to see if there&apos;s a simple way of addressing this.&lt;/p&gt;

&lt;p&gt;CC &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=amr.elhelw%40mongodb.com&quot; class=&quot;user-hover&quot; rel=&quot;amr.elhelw@mongodb.com&quot;&gt;amr.elhelw@mongodb.com&lt;/a&gt;&#160;&lt;/p&gt;</comment>
                            <comment id="5889395" author="JIRAUSER1275179" created="Fri, 17 Nov 2023 21:16:17 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ted.tuckman%40mongodb.com&quot; class=&quot;user-hover&quot; rel=&quot;ted.tuckman@mongodb.com&quot;&gt;ted.tuckman@mongodb.com&lt;/a&gt; - could you please find someone to work on this ticket as Zixuan will be out for two weeks from 11/20&lt;/p&gt;</comment>
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