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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-80374] Investigate and fix issues on DEBUG builds and timeseries with groups on metadata fields</title>
                <link>https://jira.mongodb.org/browse/SERVER-80374</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Only on DEBUG builds a statement containing a group by with metadata fields against a timeseries collection returns a different number of results compared to a non-timeseries reference collection. The specific test failing is within the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/d2d2284b8a64144cc9fb61f4ff5e2ef513fb946b/jstests/core/timeseries/timeseries_lastpoint_top.js#L132&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;timeseries_lastpoint_top.js&lt;/a&gt; test.&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2425281">SERVER-80374</key>
            <summary>Investigate and fix issues on DEBUG builds and timeseries with groups on metadata fields</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="irina.yatsenko@mongodb.com">Irina Yatsenko</assignee>
                                    <reporter username="peter.volk@mongodb.com">Peter Volk</reporter>
                        <labels>
                            <label>greenerbuild</label>
                    </labels>
                <created>Thu, 24 Aug 2023 12:27:56 +0000</created>
                <updated>Thu, 7 Dec 2023 11:07:38 +0000</updated>
                            <resolved>Mon, 27 Nov 2023 18:23:30 +0000</resolved>
                                                    <fixVersion>7.3.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="5906659" author="xgen-internal-githook" created="Mon, 27 Nov 2023 18:21:48 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Irina Yatsenko&apos;, &apos;email&apos;: &apos;irina.yatsenko@mongodb.com&apos;, &apos;username&apos;: &apos;IrinaYatsenko&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-80374&quot; title=&quot;Investigate and fix issues on DEBUG builds and timeseries with groups on metadata fields&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-80374&quot;&gt;&lt;del&gt;SERVER-80374&lt;/del&gt;&lt;/a&gt; Rewrite timeseries lastpoint tests&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/1348c7a3a4c26001638cdb81f3977a0c5cfa3f6e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/1348c7a3a4c26001638cdb81f3977a0c5cfa3f6e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5778082" author="JIRAUSER1259274" created="Fri, 13 Oct 2023 23:37:46 +0000"  >&lt;p&gt;The failure in DEBUG is caused by &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-82197&quot; title=&quot;Incorrect query results in SBE if $group spills in presence of collation &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-82197&quot;&gt;&lt;del&gt;SERVER-82197&lt;/del&gt;&lt;/a&gt; (DEBUG builds force more aggressive spilling). However, the test is severely over-engineered. My vote is to simplify it into something more maintainable.&lt;/p&gt;</comment>
                            <comment id="5672840" author="JIRAUSER1263890" created="Thu, 31 Aug 2023 18:05:40 +0000"  >&lt;p&gt;Nick pointed out in our Triage meeting that DEBUG builds spill to disk on every getNext().&lt;/p&gt;</comment>
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