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            <title>[SERVER-84076] Differentiate EOF plans generated because of non-existent namespace vs expression simplification</title>
                <link>https://jira.mongodb.org/browse/SERVER-84076</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The classic optimizer can create EOF plans for (at least?) two reasons: when the namespace doesn&apos;t exist and when expression simplification shows the query will not match any documents. I believe the second one is new as of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-81863&quot; title=&quot;Avoid a scan of either IDX or a collection if the filter is $alwaysFalse: &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-81863&quot;&gt;&lt;del&gt;SERVER-81863&lt;/del&gt;&lt;/a&gt;. It would be convenient to differentiate these cases in the explain output. For CQF, we will annotate the EOF stage with a description of why it was created. This ticket is to consider the same in classic.&lt;/p&gt;</description>
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        <key id="2522057">SERVER-84076</key>
            <summary>Differentiate EOF plans generated because of non-existent namespace vs expression simplification</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-query-optimization">Backlog - Query Optimization</assignee>
                                    <reporter username="hana.pearlman@mongodb.com">Hana Pearlman</reporter>
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                            <label>quick-tech-debt</label>
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                <created>Mon, 11 Dec 2023 20:48:22 +0000</created>
                <updated>Tue, 23 Jan 2024 08:32:02 +0000</updated>
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