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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-27734] Remove the _id field from config.chunks, as it appears to have no utility</title>
                <link>https://jira.mongodb.org/browse/SERVER-27734</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The indexes on config.chunks are &lt;p/&gt;
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&lt;p/&gt; (&lt;a href=&quot;https://github.com/mongodb/mongo/blob/3ead1168d2078379da99c0b5266b6239222d0a35/src/mongo/s/catalog/sharding_catalog_manager_impl.cpp#L1813-L1848&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;defined here&lt;/a&gt;).&lt;/p&gt;

&lt;p&gt;This will probably touch a good bit of code. Backwards compatibility must be maintained, so we&apos;ll have to continue writing it, which should be easy because _id is the concatenation of the namespace and min key fields.&lt;/p&gt;</description>
                <environment></environment>
        <key id="346634">SERVER-27734</key>
            <summary>Remove the _id field from config.chunks, as it appears to have no utility</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="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="2">Won&apos;t Fix</resolution>
                                        <assignee username="dianna.hohensee@mongodb.com">Dianna Hohensee</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                    </labels>
                <created>Wed, 18 Jan 2017 15:36:54 +0000</created>
                <updated>Wed, 18 Jan 2017 16:37:07 +0000</updated>
                            <resolved>Wed, 18 Jan 2017 16:37:06 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="1479416" author="dianna.hohensee" created="Wed, 18 Jan 2017 16:37:07 +0000"  >&lt;p&gt;Decided not to do this right now because we want more dramatic schema changes in the future. Created &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27735&quot; title=&quot;Remove uses of config.chunks&amp;#39; _id field&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27735&quot;&gt;&lt;del&gt;SERVER-27735&lt;/del&gt;&lt;/a&gt; instead, to ease backwards compatibility in future releases when the schema is changed.&lt;/p&gt;</comment>
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