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    <title>MongoDB Jira</title>
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    <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-35844] TTL index should be able to include _id field, why not ?</title>
                <link>https://jira.mongodb.org/browse/SERVER-35844</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;I would like to suggest an improvement to MongoDB.&lt;/p&gt;

&lt;p&gt;As we all know the _id field contains a timestamp of when the document was created.&#160; Currently very often we have developers creating an explicit ts field say &quot;createdOn&quot;, just because they wanted to use the TTL index to expire documents based on creation ts.&lt;/p&gt;

&lt;p&gt;Wouldn&apos;t it be wonderful if TTL index can be specified for _id field, since all the information required for expiring documents are already there ?&lt;/p&gt;

&lt;p&gt;Please let me know if you have any questions.&#160; I also spoke to Kirby (Mongo U) and Muthu Chinnasamy about this at the MongoDB World 2018.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;Thank you&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;Alex Leong&lt;/p&gt;</description>
                <environment></environment>
        <key id="564784">SERVER-35844</key>
            <summary>TTL index should be able to include _id field, why not ?</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="3">Duplicate</resolution>
                                        <assignee username="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="aleong@indeed.com">Alex Leong</reporter>
                        <labels>
                    </labels>
                <created>Wed, 27 Jun 2018 15:19:16 +0000</created>
                <updated>Tue, 6 Dec 2022 03:25:11 +0000</updated>
                            <resolved>Thu, 28 Jun 2018 05:02:28 +0000</resolved>
                                                                    <component>Index Maintenance</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="1933370" author="asya" created="Thu, 28 Jun 2018 05:02:28 +0000"  >&lt;p&gt;This seems like a duplicate of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-9305&quot; title=&quot;Enabling adding expireAfterSeconds to convert to a TTL index&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-9305&quot;&gt;&lt;del&gt;SERVER-9305&lt;/del&gt;&lt;/a&gt; (or &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-6701&quot; title=&quot;TTL expiration using _id index&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-6701&quot;&gt;&lt;del&gt;SERVER-6701&lt;/del&gt;&lt;/a&gt; which was closed as dup of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-9305&quot; title=&quot;Enabling adding expireAfterSeconds to convert to a TTL index&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-9305&quot;&gt;&lt;del&gt;SERVER-9305&lt;/del&gt;&lt;/a&gt;).&lt;/p&gt;</comment>
                            <comment id="1932829" author="ramon.fernandez" created="Wed, 27 Jun 2018 15:39:23 +0000"  >&lt;p&gt;Thanks &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=aleong%40indeed.com&quot; class=&quot;user-hover&quot; rel=&quot;aleong@indeed.com&quot;&gt;aleong@indeed.com&lt;/a&gt;, putting this on the Query team&apos;s radar.&lt;/p&gt;

&lt;p&gt;Regards,&lt;br/&gt;
Ram&#243;n.&lt;/p&gt;</comment>
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