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    <title>MongoDB Jira</title>
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    <description>This file is an XML representation of an issue</description>
    <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-64227] Remove $sum/$avg merging logic which handles old input data format from a shard after branching 6.0</title>
                <link>https://jira.mongodb.org/browse/SERVER-64227</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62940&quot; title=&quot;DocumentSourceGroup returns different results for in-memory group and spilled group when using $sum&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62940&quot;&gt;&lt;del&gt;SERVER-62940&lt;/del&gt;&lt;/a&gt;, we fixed $sum accumulator bug in spilling case and sharding case under FCV 6.0 because it involved changing over-the-wire data format from a shard to the merging side though the bug is apparently an incorrect result bug.&lt;/p&gt;

&lt;p&gt;When we branch for 6.1, we can remove the FCV gating and also serialization logic to compose a &apos;Object&apos; data for $sum partial results.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1995022">SERVER-64227</key>
            <summary>Remove $sum/$avg merging logic which handles old input data format from a shard after branching 6.0</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="yoonsoo.kim@mongodb.com">Yoon Soo Kim</assignee>
                                    <reporter username="yoonsoo.kim@mongodb.com">Yoon Soo Kim</reporter>
                        <labels>
                    </labels>
                <created>Fri, 4 Mar 2022 20:35:42 +0000</created>
                <updated>Sun, 29 Oct 2023 21:41:35 +0000</updated>
                            <resolved>Wed, 4 May 2022 19:25:53 +0000</resolved>
                                                    <fixVersion>6.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="4526704" author="xgen-internal-githook" created="Wed, 4 May 2022 19:15:39 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Yoonsoo Kim&apos;, &apos;email&apos;: &apos;yoonsoo.kim@mongodb.com&apos;, &apos;username&apos;: &apos;yun-soo&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-64227&quot; title=&quot;Remove $sum/$avg merging logic which handles old input data format from a shard after branching 6.0&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-64227&quot;&gt;&lt;del&gt;SERVER-64227&lt;/del&gt;&lt;/a&gt; Remove $sum/$avg merging logic to handle the old over-the-wire format&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f29b6bf42aca0ed228ce6a36c1c502184b1f6e55&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f29b6bf42aca0ed228ce6a36c1c502184b1f6e55&lt;/a&gt;&lt;/p&gt;</comment>
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                            <issuelinktype id="10020">
                    <name>Gantt Dependency</name>
                                            <outwardlinks description="has to be done before">
                                        <issuelink>
            <issuekey id="2022589">SERVER-65465</issuekey>
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            <issuekey id="1969849">SERVER-62940</issuekey>
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