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            <title>[SERVER-84049] Deprecate support for sharding time-series collections on time field</title>
                <link>https://jira.mongodb.org/browse/SERVER-84049</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Allowing time-series collections to be sharded on the time field adds complexity and special handling for time-series in code.&lt;/p&gt;

&lt;p&gt;Because a time-series bucket contains a range of time and may overlap it is impossible without certain restrictions (such as fixed bucketing) to determine which shard owns a particular time.&lt;/p&gt;

&lt;p&gt;It makes building features such as unique indexes for time-series collections more difficult and inefficient.&lt;/p&gt;

&lt;p&gt;Users with large time-series workloads typically have (very) high cardinality and sharding on meta is sufficient.&lt;/p&gt;

&lt;p&gt;By deprecating support for sharding time-series collections on the time field, we can remove it in the future to allow for simplifications of the code.&lt;/p&gt;</description>
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        <key id="2521430">SERVER-84049</key>
            <summary>Deprecate support for sharding time-series collections on time field</summary>
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                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
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                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="henrik.edin@mongodb.com">Henrik Edin</reporter>
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                <created>Mon, 11 Dec 2023 14:12:26 +0000</created>
                <updated>Thu, 14 Dec 2023 16:48:35 +0000</updated>
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