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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-6290] Remove $isoDate aggregation expression operator</title>
                <link>https://jira.mongodb.org/browse/SERVER-6290</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;It isn&apos;t very useful and doesn&apos;t work correctly.&lt;/p&gt;</description>
                <environment></environment>
        <key id="43279">SERVER-6290</key>
            <summary>Remove $isoDate aggregation expression operator</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="9">Done</resolution>
                                        <assignee username="matt.dannenberg">Matt Dannenberg</assignee>
                                    <reporter username="mathias@mongodb.com">Mathias Stearn</reporter>
                        <labels>
                    </labels>
                <created>Tue, 3 Jul 2012 14:57:34 +0000</created>
                <updated>Wed, 15 Aug 2012 14:15:06 +0000</updated>
                            <resolved>Fri, 6 Jul 2012 17:52:51 +0000</resolved>
                                                    <fixVersion>2.2.0-rc0</fixVersion>
                                    <component>Aggregation Framework</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="145869" author="agiamas" created="Sun, 22 Jul 2012 05:35:50 +0000"  >&lt;p&gt;How can we achieve this functionality without $isoDate now? &lt;/p&gt;

&lt;p&gt;i.e.&lt;br/&gt;
db.CalcImpressions.aggregate( { $project: {&quot;cmp&quot;:1, &quot;stp&quot;:1, &quot;evt&quot;:1, &quot;msg&quot;:1, &quot;rdd&quot;: {$add: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;quot;$receivedDate&amp;quot;, (3/24)&amp;#93;&lt;/span&gt;}, count&quot;:1}}, &lt;br/&gt;
{$project: { &quot;rdd2&quot;: { $isoDate: { year: {$year:&quot;$rdd&quot;}, month: &lt;/p&gt;
{ $month:&quot;$rdd&quot;}
&lt;p&gt;, dayOfMonth: {$dayOfMonth:&quot;$rdd&quot;} } }, &quot;count&quot;:1 }}, &lt;br/&gt;
{$group: { _id:&quot;$rdd2&quot;, totalSumPerDay: &lt;/p&gt;
{ $sum: &quot;$count&quot; }
&lt;p&gt; } } )&lt;/p&gt;

&lt;p&gt;Adding a standard offset to UTC dates to bring them to a timezone, reconstructing a new date object with no hour/minutes/second info and grouping by date (@ the non-UTC timezone)&lt;br/&gt;
The only workaround for now that I can think of is projecting in 3 fields and grouping by these fields..And then reconstructing the actual date client side, from the year/month/day of month.&lt;/p&gt;</comment>
                            <comment id="145170" author="auto" created="Fri, 20 Jul 2012 02:04:03 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;date&apos;: u&apos;2012-07-18T18:01:03-07:00&apos;, u&apos;email&apos;: u&apos;aaron@10gen.com&apos;, u&apos;name&apos;: u&apos;Aaron&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-6290&quot; title=&quot;Remove $isoDate aggregation expression operator&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-6290&quot;&gt;&lt;del&gt;SERVER-6290&lt;/del&gt;&lt;/a&gt; Test that the $isoDate operator is not available.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2a21b2f2802a78d194a1edce2f7005245e065dc1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2a21b2f2802a78d194a1edce2f7005245e065dc1&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="145169" author="auto" created="Fri, 20 Jul 2012 02:04:02 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;date&apos;: u&apos;2012-07-18T18:00:05-07:00&apos;, u&apos;email&apos;: u&apos;aaron@10gen.com&apos;, u&apos;name&apos;: u&apos;Aaron&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-6290&quot; title=&quot;Remove $isoDate aggregation expression operator&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-6290&quot;&gt;&lt;del&gt;SERVER-6290&lt;/del&gt;&lt;/a&gt; Remove unused Iterator class and ExpressionObject::getFieldIterator() function, which were added for removed $isoDate operator implementation.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/89e640f8ad9de84c0735dbbb862b5abab4574f02&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/89e640f8ad9de84c0735dbbb862b5abab4574f02&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="140422" author="auto" created="Fri, 6 Jul 2012 17:50:23 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;date&apos;: u&apos;2012-07-05T06:54:13-07:00&apos;, u&apos;email&apos;: u&apos;dannenberg.matt@gmail.com&apos;, u&apos;name&apos;: u&apos;Matt Dannenberg&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-6290&quot; title=&quot;Remove $isoDate aggregation expression operator&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-6290&quot;&gt;&lt;del&gt;SERVER-6290&lt;/del&gt;&lt;/a&gt; remove $isoDate aggro operation&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c54bf4aa6e95776d093788c3e2b4f54c230ef1ca&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c54bf4aa6e95776d093788c3e2b4f54c230ef1ca&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
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                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="26050">SERVER-4435</issuekey>
        </issuelink>
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