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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <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-48478] Create a PlanExecutor implementation for executing a Pipeline</title>
                <link>https://jira.mongodb.org/browse/SERVER-48478</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;As part of adding the slot-based execution (SBE) engine, we will have multiple implementations of the &lt;tt&gt;PlanExecutor&lt;/tt&gt; interface: one for the &quot;classic&quot; execution engine and another for SBE. This will require us to convert &lt;tt&gt;PlanExecutor&lt;/tt&gt; into a clean interface that can abstract over multiple execution engines (see &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48477&quot; title=&quot;Clean up PlanExecutor interface for SBE&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48477&quot;&gt;&lt;del&gt;SERVER-48477&lt;/del&gt;&lt;/a&gt;). Therefore, it would make sense to have a third implementation of &lt;tt&gt;PlanExecutor&lt;/tt&gt; which is used for executing &lt;tt&gt;Pipelines&lt;/tt&gt; of &lt;tt&gt;DocumentSources&lt;/tt&gt;. This will allow us to get rid of the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/ae840738657927521d1869dbd7aecde0339bb376/src/mongo/db/exec/pipeline_proxy.h&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;PipelineProxyStage&lt;/a&gt; which currently sits between &lt;tt&gt;PlanExecutor&lt;/tt&gt; and the &lt;tt&gt;Pipeline&lt;/tt&gt;. Using &lt;tt&gt;PipelineProxyStage&lt;/tt&gt; when SBE is enabled is particularly undesirable because it causes the runtime execution plan tree to involve both SBE &lt;tt&gt;PlanStages&lt;/tt&gt; and classic &lt;tt&gt;PlanStages&lt;/tt&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1365931">SERVER-48478</key>
            <summary>Create a PlanExecutor implementation for executing a Pipeline</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="david.storch@mongodb.com">David Storch</assignee>
                                    <reporter username="david.storch@mongodb.com">David Storch</reporter>
                        <labels>
                    </labels>
                <created>Thu, 28 May 2020 20:07:38 +0000</created>
                <updated>Sun, 29 Oct 2023 22:07:39 +0000</updated>
                            <resolved>Fri, 24 Jul 2020 16:39:21 +0000</resolved>
                                                    <fixVersion>4.7.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="3301207" author="xgen-internal-githook" created="Fri, 24 Jul 2020 16:31:50 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;David Storch&apos;, &apos;email&apos;: &apos;david.storch@mongodb.com&apos;, &apos;username&apos;: &apos;dstorch&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48478&quot; title=&quot;Create a PlanExecutor implementation for executing a Pipeline&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48478&quot;&gt;&lt;del&gt;SERVER-48478&lt;/del&gt;&lt;/a&gt; Replace PipelineProxyStage with PlanExecutorPipeline&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b4b35f9cc69412611a198642333bf40daa5ba58c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b4b35f9cc69412611a198642333bf40daa5ba58c&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3301206" author="xgen-internal-githook" created="Fri, 24 Jul 2020 16:31:44 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;David Storch&apos;, &apos;email&apos;: &apos;david.storch@mongodb.com&apos;, &apos;username&apos;: &apos;dstorch&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48478&quot; title=&quot;Create a PlanExecutor implementation for executing a Pipeline&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48478&quot;&gt;&lt;del&gt;SERVER-48478&lt;/del&gt;&lt;/a&gt; Use PlanExecutorPipeline in mqlrun&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mongo-enterprise-modules/commit/3c4424e7e5a2c3bae81b5929a939a8712d9e5998&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo-enterprise-modules/commit/3c4424e7e5a2c3bae81b5929a939a8712d9e5998&lt;/a&gt;&lt;/p&gt;</comment>
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                                                                <inwardlinks description="is related to">
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            <issuekey id="1417303">SERVER-49808</issuekey>
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