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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-36796] &quot;timeOfCreation&quot; field in PlanCacheEntry is actually the time of the last transition to isActive:true</title>
                <link>https://jira.mongodb.org/browse/SERVER-36796</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;There are cases where we overwrite the PlanCacheEntry stored in the cache, creating a new entry with a new &quot;timeOfCreation&quot;. This means that the output of planCacheListPlans and $planCacheStats may be confusing. For example, when an inactive cache entry transitions to active, it will get a new &quot;timeOfCreation&quot; value.&lt;/p&gt;

&lt;p&gt;See here:&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/7bc9953a256c1fab8b772812e712b909fefc4535/src/mongo/db/query/plan_cache.cpp#L776-L787&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/7bc9953a256c1fab8b772812e712b909fefc4535/src/mongo/db/query/plan_cache.cpp#L776-L787&lt;/a&gt;&lt;/p&gt;
</description>
                <environment></environment>
        <key id="591859">SERVER-36796</key>
            <summary>&quot;timeOfCreation&quot; field in PlanCacheEntry is actually the time of the last transition to isActive:true</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-execution">Backlog - Query Execution</assignee>
                                    <reporter username="ian.boros@mongodb.com">Ian Boros</reporter>
                        <labels>
                            <label>neweng</label>
                    </labels>
                <created>Tue, 21 Aug 2018 18:49:22 +0000</created>
                <updated>Tue, 6 Dec 2022 03:20:06 +0000</updated>
                                                                            <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="3195439" author="ian.boros" created="Mon, 8 Jun 2020 17:50:52 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=charlie.swanson&quot; class=&quot;user-hover&quot; rel=&quot;charlie.swanson&quot;&gt;charlie.swanson&lt;/a&gt; I think that is what I would have proposed when I filed this. Maybe renaming &apos;timeOfCreation&apos; to &apos;timeOfLastStateTransition&apos; and then making sure &apos;timeOfCreation&apos; is accurate.&lt;/p&gt;

&lt;p&gt;It&apos;s been long enough that if this gets assigned out we should do some investigation first to make sure this is still an issue.&lt;/p&gt;</comment>
                            <comment id="3195298" author="charlie.swanson" created="Mon, 8 Jun 2020 17:13:35 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ian.boros&quot; class=&quot;user-hover&quot; rel=&quot;ian.boros&quot;&gt;ian.boros&lt;/a&gt; is the proposed fix here to just not overwrite the timeOfCreation field? Otherwise I don&apos;t see how this is a &quot;neweng&quot; ticket.&lt;/p&gt;</comment>
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