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    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-50897] Fix Sort/Limit/Sort Optimization</title>
                <link>https://jira.mongodb.org/browse/SERVER-50897</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;A Fix for BF-18611. The gist here is that we need to be more careful when coalescing adjacent sorts. We can&apos;t simply optimize away the leading sort. We need to check if there is a limit stage in-between the adjacent sorts before deciding to optimize. If the sort key patterns are the same, then we can optimize the leading sort away, otherwise it&apos;s incorrect to merge the two sorts and take the min of a current limit and an adjacent limit.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1471607">SERVER-50897</key>
            <summary>Fix Sort/Limit/Sort Optimization</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="eric.cox@mongodb.com">Eric Cox</assignee>
                                    <reporter username="eric.cox@mongodb.com">Eric Cox</reporter>
                        <labels>
                    </labels>
                <created>Fri, 11 Sep 2020 19:31:54 +0000</created>
                <updated>Sun, 29 Oct 2023 22:03:17 +0000</updated>
                            <resolved>Sat, 26 Sep 2020 01:23:34 +0000</resolved>
                                                    <fixVersion>4.8.0</fixVersion>
                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3462059" author="xgen-internal-githook" created="Fri, 23 Oct 2020 21:57:57 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Eric Cox&apos;, &apos;email&apos;: &apos;eric.cox@mongodb.com&apos;, &apos;username&apos;: &apos;ericox&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-50897&quot; title=&quot;Fix Sort/Limit/Sort Optimization&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-50897&quot;&gt;&lt;del&gt;SERVER-50897&lt;/del&gt;&lt;/a&gt; Fix Sort/Limit/Sort optimization&lt;/p&gt;

&lt;p&gt;(cherry picked from commit d54f13fe76a8a9be411966ecdbf840c520d43833)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/5f66c3fa2af530e5f9242758eef87846d564fe96&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/5f66c3fa2af530e5f9242758eef87846d564fe96&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3412807" author="xgen-internal-githook" created="Fri, 25 Sep 2020 23:43:41 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Eric Cox&apos;, &apos;email&apos;: &apos;eric.cox@mongodb.com&apos;, &apos;username&apos;: &apos;ericox&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-50897&quot; title=&quot;Fix Sort/Limit/Sort Optimization&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-50897&quot;&gt;&lt;del&gt;SERVER-50897&lt;/del&gt;&lt;/a&gt; Fix Sort/Limit/Sort optimization&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d54f13fe76a8a9be411966ecdbf840c520d43833&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d54f13fe76a8a9be411966ecdbf840c520d43833&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="513265">SERVER-33966</issuekey>
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