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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-55790] Ensure query rewrites for time-series collections are correct in the case of mismatched collations</title>
                <link>https://jira.mongodb.org/browse/SERVER-55790</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Sharding support for time-series collections requires using an index with simple collation. Currently queries on a view must use the same collation as the view&apos;s default collation, however after &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-55653&quot; title=&quot;Queries on time-series views do not accept collations on indexes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-55653&quot;&gt;&lt;del&gt;SERVER-55653&lt;/del&gt;&lt;/a&gt; queries on time-series collections will also be able to specify a simple collation (even if the default collation is not simple) to allow for sharded time-series collections. We must make sure that our query rewrites (ie. predicate mapping to the buckets&apos; control.min/max fields, pushing meta predicates past $_internalUnpackBucket) will return correct results in the event that the query&apos;s collation is simple and does not match the default collection collation.&lt;/p&gt;

&lt;p&gt;Note that the optimization work for this ensures for correct rewrites for any specified collation, not just the simple collation.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1671251">SERVER-55790</key>
            <summary>Ensure query rewrites for time-series collections are correct in the case of mismatched collations</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="13201">Fixed</resolution>
                                        <assignee username="katherine.wu@mongodb.com">Katherine Wu</assignee>
                                    <reporter username="katherine.wu@mongodb.com">Katherine Wu</reporter>
                        <labels>
                    </labels>
                <created>Mon, 5 Apr 2021 19:03:28 +0000</created>
                <updated>Sun, 29 Oct 2023 21:55:20 +0000</updated>
                            <resolved>Fri, 30 Apr 2021 17:07:45 +0000</resolved>
                                                    <fixVersion>5.0.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="3749039" author="xgen-internal-githook" created="Fri, 30 Apr 2021 15:51:21 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Katherine Wu&apos;, &apos;email&apos;: &apos;katherine.wu@mongodb.com&apos;, &apos;username&apos;: &apos;kaywux&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-55790&quot; title=&quot;Ensure query rewrites for time-series collections are correct in the case of mismatched collations&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-55790&quot;&gt;&lt;del&gt;SERVER-55790&lt;/del&gt;&lt;/a&gt; Ensure query rewrites for time-series collections are correct in the case of mismatched collations&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6f026d8a741553b49177ae1fdfd8c0e967baa2d8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6f026d8a741553b49177ae1fdfd8c0e967baa2d8&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1626449">SERVER-54597</issuekey>
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