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    <title>MongoDB Jira</title>
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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-54049] Translate window function AST to execution state for accumulator-style functions</title>
                <link>https://jira.mongodb.org/browse/SERVER-54049</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Note that this ticket should &lt;b&gt;only&lt;/b&gt; handle non-removable position-based windows, as the execution state for such windows already exists for accumulators (AccumulatorState). So the task here is to walk the parsed tree and produce the correct AccumulatorState along with the corresponding window manager to be used by the aggregation stage.&lt;/p&gt;

&lt;p&gt;The full list of supported accumulators: sum, avg, stddev, min, max, count, first, last, push, addToSet&lt;/p&gt;</description>
                <environment></environment>
        <key id="1600633">SERVER-54049</key>
            <summary>Translate window function AST to execution state for accumulator-style functions</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="nicholas.zolnierz@mongodb.com">Nicholas Zolnierz</assignee>
                                    <reporter username="nicholas.zolnierz@mongodb.com">Nicholas Zolnierz</reporter>
                        <labels>
                    </labels>
                <created>Tue, 26 Jan 2021 13:27:35 +0000</created>
                <updated>Sun, 29 Oct 2023 21:58:22 +0000</updated>
                            <resolved>Tue, 23 Feb 2021 14:31:11 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="3629862" author="xgen-internal-githook" created="Tue, 23 Feb 2021 14:00:56 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Nick Zolnierz&apos;, &apos;email&apos;: &apos;nicholas.zolnierz@mongodb.com&apos;, &apos;username&apos;: &apos;nzolnierzmdb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54049&quot; title=&quot;Translate window function AST to execution state for accumulator-style functions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54049&quot;&gt;&lt;del&gt;SERVER-54049&lt;/del&gt;&lt;/a&gt; Add translation phase for accumulator-style window functions&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e8134e5da39f19b661efb488bb392abbbf436c74&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e8134e5da39f19b661efb488bb392abbbf436c74&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3629388" author="xgen-internal-githook" created="Tue, 23 Feb 2021 02:51:21 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Nick Zolnierz&apos;, &apos;email&apos;: &apos;nicholas.zolnierz@mongodb.com&apos;, &apos;username&apos;: &apos;nzolnierzmdb&apos;}
&lt;p&gt;Message: Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54049&quot; title=&quot;Translate window function AST to execution state for accumulator-style functions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54049&quot;&gt;&lt;del&gt;SERVER-54049&lt;/del&gt;&lt;/a&gt; Add translation phase for accumulator-style window functions&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit 8b27b6710d4db7cefb840309903462ed40007402.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d93aff7795f7089e9bdd253db792c6878c4be1cd&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d93aff7795f7089e9bdd253db792c6878c4be1cd&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3628857" author="xgen-internal-githook" created="Mon, 22 Feb 2021 21:54:46 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Nick Zolnierz&apos;, &apos;email&apos;: &apos;nicholas.zolnierz@mongodb.com&apos;, &apos;username&apos;: &apos;nzolnierzmdb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54049&quot; title=&quot;Translate window function AST to execution state for accumulator-style functions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54049&quot;&gt;&lt;del&gt;SERVER-54049&lt;/del&gt;&lt;/a&gt; Add translation phase for accumulator-style window functions&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8b27b6710d4db7cefb840309903462ed40007402&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8b27b6710d4db7cefb840309903462ed40007402&lt;/a&gt;&lt;/p&gt;</comment>
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