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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[DOCS-12660] Improve context for building unique indexes on sharded collections</title>
                <link>https://jira.mongodb.org/browse/DOCS-12660</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;h2&gt;&lt;a name=&quot;Description&quot;&gt;&lt;/a&gt;Description&lt;/h2&gt;
&lt;p&gt;Unique indexes on sharded collections can only be enforced on the shard key or a prefix of the shard key.&lt;/p&gt;

&lt;p&gt;The Behaviour section of the Unique Index page mentions building unique indexes on replica sets and sharded clusters: &lt;a href=&quot;https://docs.mongodb.com/manual/core/index-unique/#building-unique-index-on-replica-sets-and-sharded-clusters&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/manual/core/index-unique/#building-unique-index-on-replica-sets-and-sharded-clusters&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;However, the caveats for unique indexes in sharded clusters are a fair distance down the page:&#160;&lt;a href=&quot;https://docs.mongodb.com/manual/core/index-unique/#sharded-clusters-and-unique-indexes&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/manual/core/index-unique/#sharded-clusters-and-unique-indexes&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;These two behaviour notes should be adjacent for context.&lt;/p&gt;

&lt;h2&gt;&lt;a name=&quot;Scopeofchanges&quot;&gt;&lt;/a&gt;Scope of changes&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;ImpacttoOtherDocs&quot;&gt;&lt;/a&gt;Impact to Other Docs&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;MVP%28WorkandDate%29&quot;&gt;&lt;/a&gt;MVP (Work and Date)&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;Resources%28ScopeorDesignDocs%2CInvision%2Cetc.%29&quot;&gt;&lt;/a&gt;Resources (Scope or Design Docs, Invision, etc.)&lt;/h2&gt;
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                <environment></environment>
        <key id="750650">DOCS-12660</key>
            <summary>Improve context for building unique indexes on sharded collections</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="stephen.steneker@mongodb.com">Stennie Steneker</reporter>
                        <labels>
                            <label>docs-sharding</label>
                    </labels>
                <created>Tue, 30 Apr 2019 11:22:20 +0000</created>
                <updated>Mon, 30 Oct 2023 20:42:22 +0000</updated>
                                                            <fixVersion>Server_Docs_20231030</fixVersion>
                                    <component>manual</component>
                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4940476" author="edu.bot" created="Mon, 31 Oct 2022 16:06:02 +0000"  >&lt;p&gt;Hello! This ticket has been closed due to inactivity. If you believe this ticket is still important, please reopen it and leave a comment to explain why. Thank you!&lt;/p&gt;</comment>
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