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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-25897] Add a priming stage to Pipeline execution to help determine if further optimization can happen.</title>
                <link>https://jira.mongodb.org/browse/SERVER-25897</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;If the $group stage spills to disk, then the results will be output in order of their _id. If this is the case, we could potentially take advantage of this knowledge, by removing a subsequent sort on _id, or by making a subsequent group convert to streaming.&lt;/p&gt;

&lt;p&gt;We should add some sort of prep stage to pipeline execution, so that we will know if the $group is going to spill to disk before we have to make decisions on whether outputs are sorted.&lt;/p&gt;</description>
                <environment></environment>
        <key id="313133">SERVER-25897</key>
            <summary>Add a priming stage to Pipeline execution to help determine if further optimization can happen.</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-query-optimization">Backlog - Query Optimization</assignee>
                                    <reporter username="charlie.swanson@mongodb.com">Charlie Swanson</reporter>
                        <labels>
                            <label>optimization</label>
                    </labels>
                <created>Wed, 31 Aug 2016 16:09:09 +0000</created>
                <updated>Tue, 6 Dec 2022 04:17:46 +0000</updated>
                                                                            <component>Aggregation Framework</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
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