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    <title>MongoDB Jira</title>
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    <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>[DOCS-13822] Investigate changes in SERVER-38909: Permit empty update modifiers, treating as a no-op rather than an error</title>
                <link>https://jira.mongodb.org/browse/DOCS-13822</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;h2&gt;&lt;a name=&quot;Description&quot;&gt;&lt;/a&gt;Description&lt;/h2&gt;

    &lt;div class=&quot;panel&quot; style=&quot;background-color: #c2d2c2;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelHeader&quot; style=&quot;border-bottom-width: 1px;background-color: #239eb0;&quot;&gt;&lt;b&gt;Downstream Change Summary&lt;/b&gt;&lt;/div&gt;&lt;div class=&quot;panelContent&quot; style=&quot;background-color: #c2d2c2;&quot;&gt;
&lt;p&gt;    Changed the behavior of &quot;update&quot; and &quot;findAndModify&quot; commands. All update modifiers allow an empty spec (i.e. {$pop: {}}, {$min: {}}, {$set: {}}, {$unset: {}}) now. Flagging for review.&lt;/p&gt;
&lt;/div&gt;&lt;/div&gt;
&lt;h2&gt;&lt;a name=&quot;DescriptionofLinkedTicket&quot;&gt;&lt;/a&gt;Description of Linked Ticket&lt;/h2&gt;
&lt;p&gt;    As a few people have mentioned on&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-12266&quot; title=&quot;Update no longer allows empty modifier objects&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-12266&quot;&gt;&lt;del&gt;SERVER-12266&lt;/del&gt;&lt;/a&gt;, the change to throw errors on empty updates is highly disruptive and has kept me from updating for a long time. I&apos;m finally in a position in which I need to move to a more recent version of MongoDB and have followed the lead of others in writing an application layer that detects empty patches and aborts the call to MongoDB in those cases. But, in doing so, I&apos;m struck by the absurdity of the application needing to include code for that. Surely it would be much more efficient to implement such functionality within MongoDB, perhaps enabled by a run-time flag? Or perhaps a default, and disabled only via a run-time flag, since I&apos;m sure that the people who want empty patches to work vastly outnumber those who want them to fail. I guess that this could also be a client option.&lt;/p&gt;

&lt;p&gt;An action triggered via an option on a patch request to a database-driven service is a very common thing. The success of the operation is seldom desired to be contingent on the presence of patch data, and there are probably millions of lines of code in the world that work around Mongo&apos;s inconsistent treatment of empty and non-empty patches. It would be great to be able to remove them.&lt;/p&gt;


&lt;h2&gt;&lt;a name=&quot;Scopeofchanges&quot;&gt;&lt;/a&gt;Scope of changes&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;ImpacttoOtherDocs&quot;&gt;&lt;/a&gt;Impact to Other Docs&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;MVP%28WorkandDate%29&quot;&gt;&lt;/a&gt;MVP (Work and Date)&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;Resources%28ScopeorDesignDocs%2CInvision%2Cetc.%29&quot;&gt;&lt;/a&gt;Resources (Scope or Design Docs, Invision, etc.)&lt;/h2&gt;
</description>
                <environment></environment>
        <key id="1438029">DOCS-13822</key>
            <summary>Investigate changes in SERVER-38909: Permit empty update modifiers, treating as a no-op rather than an error</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="naomi.pentrel@mongodb.com">Naomi Pentrel</assignee>
                                    <reporter username="backlog-server-pm">Backlog - Core Eng Program Management Team</reporter>
                        <labels>
                    </labels>
                <created>Tue, 11 Aug 2020 13:56:29 +0000</created>
                <updated>Mon, 13 Nov 2023 18:03:44 +0000</updated>
                            <resolved>Fri, 5 Mar 2021 15:52:43 +0000</resolved>
                                                    <fixVersion>4.7.0</fixVersion>
                    <fixVersion>4.0.25</fixVersion>
                    <fixVersion>4.2.15</fixVersion>
                    <fixVersion>4.4.7</fixVersion>
                    <fixVersion>Server_Docs_20231030</fixVersion>
                    <fixVersion>Server_Docs_20231106</fixVersion>
                    <fixVersion>Server_Docs_20231105</fixVersion>
                    <fixVersion>Server_Docs_20231113</fixVersion>
                                    <component>manual</component>
                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3649317" author="xgen-internal-githook" created="Fri, 5 Mar 2021 15:38:28 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Naomi Pentrel&apos;, &apos;email&apos;: &apos;5212232+npentrel@users.noreply.github.com&apos;, &apos;username&apos;: &apos;npentrel&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-13822&quot; title=&quot;Investigate changes in SERVER-38909: Permit empty update modifiers, treating as a no-op rather than an error&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-13822&quot;&gt;&lt;del&gt;DOCS-13822&lt;/del&gt;&lt;/a&gt; permit empty update modifiers&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/29e33d339515e7d542751ff0c5b280cd99eb58a1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/29e33d339515e7d542751ff0c5b280cd99eb58a1&lt;/a&gt;&lt;/p&gt;</comment>
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