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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-59078] Implement &apos;merging&apos; expressions for accumulators</title>
                <link>https://jira.mongodb.org/browse/SERVER-59078</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In addition to the accumulators &apos;accumulate&apos; and &apos;finalize&apos; steps, we&apos;ll need a way to &apos;merge&apos; two accumulated states. This is necessary to implement a naive version of spilling (via sorted files or unsorted files) as well as sharding.&lt;/p&gt;

&lt;p&gt;Support for this should be added to the stage builder for accumulators.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1840161">SERVER-59078</key>
            <summary>Implement &apos;merging&apos; expressions for accumulators</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="yoonsoo.kim@mongodb.com">Yoon Soo Kim</assignee>
                                    <reporter username="ian.boros@mongodb.com">Ian Boros</reporter>
                        <labels>
                    </labels>
                <created>Tue, 3 Aug 2021 20:50:39 +0000</created>
                <updated>Wed, 13 Oct 2021 18:14:40 +0000</updated>
                            <resolved>Wed, 13 Oct 2021 18:14:40 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="4122306" author="eric.cox" created="Wed, 13 Oct 2021 18:14:40 +0000"  >&lt;p&gt;Closing since the spilling implementation can do without this. &lt;/p&gt;</comment>
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