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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>[DOCS-1771] Comment on: &quot;manual/reference/operator/exists.txt&quot;</title>
                <link>https://jira.mongodb.org/browse/DOCS-1771</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>
&lt;p&gt;&amp;gt; Documents that contain the field but has the value null are not returned.&lt;/p&gt;

&lt;p&gt;It&apos;s not the case:&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;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;  margin-top: 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;&amp;gt; db.test.insert({ _id: 1, cancelDate: null })&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;&amp;gt; db.test.find( { cancelDate : { $exists: false } } )&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;&amp;gt; db.test.find( { cancelDate : { $exists: true } } )&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;   margin-bottom: 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;{ &quot;_id&quot; : 1, &quot;cancelDate&quot; : null }&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
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&lt;p/&gt;




</description>
                <environment>version 2.4.5&lt;br/&gt;
&lt;br/&gt;
*Location*: &lt;a href=&quot;http://docs.mongodb.org/manual/reference/operator/exists/#op._S_exists&quot;&gt;http://docs.mongodb.org/manual/reference/operator/exists/#op._S_exists&lt;/a&gt;&lt;br/&gt;
*User-Agent*: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/28.0.1500.52 Chrome/28.0.1500.52 Safari/537.36&lt;br/&gt;
*Referrer*: &lt;a href=&quot;http://docs.mongodb.org/manual/faq/developers/&quot;&gt;http://docs.mongodb.org/manual/faq/developers/&lt;/a&gt;&lt;br/&gt;
*Screen Resolution*: 1680 x 1050&lt;br/&gt;
*repo*: docs&lt;br/&gt;
*source*: reference/operator/exists&lt;br/&gt;
</environment>
        <key id="84481">DOCS-1771</key>
            <summary>Comment on: &quot;manual/reference/operator/exists.txt&quot;</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="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="kay.kim@mongodb.com">Kay Kim</assignee>
                                    <reporter username="auto">auto</reporter>
                        <labels>
                            <label>collector-298ba4e7</label>
                    </labels>
                <created>Fri, 2 Aug 2013 15:36:00 +0000</created>
                <updated>Fri, 3 Nov 2017 11:23:56 +0000</updated>
                            <resolved>Fri, 2 Aug 2013 15:42:07 +0000</resolved>
                                                    <fixVersion>01112017-cleanup</fixVersion>
                                        <due></due>
                            <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="394521" author="samk" created="Fri, 2 Aug 2013 15:42:07 +0000"  >&lt;p&gt;$exists tests if a field is in a document, and shouldn&apos;t return documents that contain fields with null values. The documentation currently says the following: &lt;/p&gt;

&lt;p&gt;&quot;Documents that contain the field but has the value null are not returned.&quot;&lt;/p&gt;

&lt;p&gt;I believe this is consistent with the above case.&lt;/p&gt;</comment>
                    </comments>
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                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="83539">DOCS-1747</issuekey>
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