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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-28145] add ability to obtain modified flag from findOneAndUpdate result</title>
                <link>https://jira.mongodb.org/browse/SERVER-28145</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;my understanding is that &lt;tt&gt;updateOne&lt;/tt&gt; returns a &lt;tt&gt;modifiedCount&lt;/tt&gt; field indicating if a document has actually been modified (i.e. can be used to distinguish if a field has actually changed vs a redundant action of attempting to update a existing field to it&apos;s original value).&lt;/p&gt;

&lt;p&gt;&lt;tt&gt;findOneAndUpdate&lt;/tt&gt; doesn&apos;t appear to communicate that same information such that it is impossible to distinguish the case where an update operation has no overall effect on a document because no field has actually changed from it&apos;s original value.&lt;/p&gt;

&lt;p&gt;i realize that the existing return value needs to stay consistent for backwards compatibility, but maybe introduce a different method (e.g. &lt;tt&gt;updateAndFetch&lt;/tt&gt;) or a flag to this method (e.g. &lt;tt&gt;includeInfo&lt;/tt&gt;) which will allow a result looking something like:&lt;/p&gt;
&lt;p/&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;  document: &amp;lt;either original or new document here depending on flag&amp;gt;,&lt;/span&gt;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;  modifiedCount: &amp;lt;counter indicating whether an actual modification has occurred&amp;gt;&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="358143">SERVER-28145</key>
            <summary>add ability to obtain modified flag from findOneAndUpdate result</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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-execution">Backlog - Query Execution</assignee>
                                    <reporter username="tony-kerz">tony kerz</reporter>
                        <labels>
                    </labels>
                <created>Tue, 28 Feb 2017 16:59:45 +0000</created>
                <updated>Tue, 6 Dec 2022 04:06:16 +0000</updated>
                                                                            <component>Querying</component>
                                        <votes>1</votes>
                                    <watches>11</watches>
                                                                                                                <comments>
                            <comment id="1515413" author="david.golden" created="Fri, 3 Mar 2017 16:23:50 +0000"  >&lt;p&gt;A request for an update should go to the internal SPECS Jira project with &quot;CRUD spec&quot; as the &quot;component&quot; field.&lt;/p&gt;</comment>
                            <comment id="1515389" author="charlie.swanson" created="Fri, 3 Mar 2017 15:59:19 +0000"  >&lt;p&gt;There appear to be two related problems here:&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;The &lt;tt&gt;findAndModify&lt;/tt&gt; command does not report enough information to be able to determine whether the update was a no-op. The update command returns &apos;nMatched&apos; and &apos;nModified&apos;, which would probably be useful in this context as well.&lt;/li&gt;
	&lt;li&gt;The CRUD API for &lt;tt&gt;findOneAndUpdate&lt;/tt&gt; only returns the pre or post image of the document, and hides the other information reported by the findAndModify command, which &lt;a href=&quot;https://docs.mongodb.com/manual/reference/command/findAndModify/#output&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;includes a &lt;tt&gt;lastErrorObject&lt;/tt&gt;&lt;/a&gt;, which might be useful?&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=david.golden&quot; class=&quot;user-hover&quot; rel=&quot;david.golden&quot;&gt;david.golden&lt;/a&gt; is there somewhere we can put a request for an update to the CRUD API?&lt;/p&gt;</comment>
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            <issuekey id="2054465">SERVER-66740</issuekey>
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