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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-59660] Allow change stream rewrites for $match with non-simple collation</title>
                <link>https://jira.mongodb.org/browse/SERVER-59660</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-59426&quot; title=&quot;Do not mix collations during change stream rewrites&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-59426&quot;&gt;&lt;del&gt;SERVER-59426&lt;/del&gt;&lt;/a&gt; completely disables change stream rewrites for pipelines with a non-simple collation.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-59659&quot; title=&quot;Investigate allowing the change stream oplog query to run using the pipeline collation&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-59659&quot;&gt;SERVER-59659&lt;/a&gt; would eliminate the need for that restriction, but even if that does not turn out to be practical, some rewrites can still be applied in pipelines with non-simple collations.&lt;/p&gt;

&lt;p&gt;Fields such as clusterTime, which cannot have a string value, can be rewritten normally. Rewrites for fields that can have arbitrary strings would need to go in a separate $match, which does not get pushed down to the $cursor level of the pipeline.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1862268">SERVER-59660</key>
            <summary>Allow change stream rewrites for $match with non-simple collation</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="3">Duplicate</resolution>
                                        <assignee username="backlog-query-execution">Backlog - Query Execution</assignee>
                                    <reporter username="justin.seyster@mongodb.com">Justin Seyster</reporter>
                        <labels>
                    </labels>
                <created>Sat, 28 Aug 2021 00:21:04 +0000</created>
                <updated>Tue, 6 Dec 2022 00:57:54 +0000</updated>
                            <resolved>Sun, 3 Oct 2021 23:01:36 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="4098291" author="bernard.gorman" created="Sun, 3 Oct 2021 23:01:36 +0000"  >&lt;p&gt;Closing this as a duplicate of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-59659&quot; title=&quot;Investigate allowing the change stream oplog query to run using the pipeline collation&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-59659&quot;&gt;SERVER-59659&lt;/a&gt;. The two requests are not exactly the same, but &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-59659&quot; title=&quot;Investigate allowing the change stream oplog query to run using the pipeline collation&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-59659&quot;&gt;SERVER-59659&lt;/a&gt; proposes a more expansive solution and can be used to consider both alternatives.&lt;/p&gt;</comment>
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