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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-4079] Computed Fields</title>
                <link>https://jira.mongodb.org/browse/SERVER-4079</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;I keep wishing I could have a computed field:&lt;/p&gt;

&lt;p&gt;Basic idea:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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&lt;p/&gt;

&lt;p&gt;Where it gets interesting:&lt;/p&gt;
&lt;p/&gt;
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&lt;p/&gt;

&lt;p&gt;Obviously if you know in advance that you&apos;re going to need to run a query like this frequently it makes sense to try to precompute the value, but sometimes a query is so rare that precomputing is a waste, and in some cases you don&apos;t know enough information in advance.&lt;/p&gt;</description>
                <environment>All</environment>
        <key id="23677">SERVER-4079</key>
            <summary>Computed Fields</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</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="9">Done</resolution>
                                        <assignee username="backlog-server-query">Backlog - Query Team</assignee>
                                    <reporter username="bugslayer">John Crenshaw</reporter>
                        <labels>
                    </labels>
                <created>Sun, 16 Oct 2011 00:10:13 +0000</created>
                <updated>Tue, 6 Dec 2022 05:39:57 +0000</updated>
                            <resolved>Tue, 15 Aug 2017 01:23:29 +0000</resolved>
                                    <version>2.0.0</version>
                                                    <component>JavaScript</component>
                    <component>Querying</component>
                                        <votes>6</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1648227" author="ramon.fernandez" created="Tue, 15 Aug 2017 01:23:17 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=bugslayer&quot; class=&quot;user-hover&quot; rel=&quot;bugslayer&quot;&gt;bugslayer&lt;/a&gt;, we&apos;re going to close this ticket since the operations you describe are achievable using &lt;a href=&quot;https://docs.mongodb.com/manual/aggregation/#aggregation&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;aggregation&lt;/a&gt;. If you find yourself needing an operation that the aggregation framework does not yet support please open a new ticket requesting such functionality.&lt;/p&gt;

&lt;p&gt;Thanks,&lt;br/&gt;
Ram&#243;n.&lt;/p&gt;</comment>
                            <comment id="1315944" author="ramon.fernandez" created="Wed, 6 Jul 2016 20:28:58 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=bugslayer&quot; class=&quot;user-hover&quot; rel=&quot;bugslayer&quot;&gt;bugslayer&lt;/a&gt;, have you tried using the &lt;a href=&quot;https://docs.mongodb.com/manual/aggregation/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;aggregation framework&lt;/a&gt;? It contains a lot of new functionality since this ticket was created, and I believe it will address your needs.&lt;/p&gt;

&lt;p&gt;Thanks,&lt;br/&gt;
Ram&#243;n.&lt;/p&gt;</comment>
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            <issuekey id="14725">SERVER-2549</issuekey>
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