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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-2384] remove({_id : undefined}); removes everything from collection</title>
                <link>https://jira.mongodb.org/browse/SERVER-2384</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;db.somecollection.remove({_id : undefined}); removes every item from the collection. I think that the correct behavior would be to throw an error.&lt;/p&gt;

&lt;p&gt;Example:&lt;br/&gt;
db.temp.insert(&lt;/p&gt;
{ _id : 1}
&lt;p&gt;);&lt;br/&gt;
db.temp.insert(&lt;/p&gt;
{ _id : 2}
&lt;p&gt;);&lt;br/&gt;
db.temp.remove({_id : undefined});&lt;br/&gt;
db.temp.find(); // returns nothing&lt;/p&gt;

&lt;p&gt;Same thing happens with any undefined property:&lt;/p&gt;

&lt;p&gt;db.temp.insert(&lt;/p&gt;
{ _id : 1}
&lt;p&gt;);&lt;br/&gt;
db.temp.insert(&lt;/p&gt;
{ _id : 2}
&lt;p&gt;);&lt;br/&gt;
db.temp.remove(&lt;/p&gt;
{foo : undefined}
&lt;p&gt;);&lt;br/&gt;
db.temp.find(); // returns nothing&lt;/p&gt;

&lt;p&gt;I could easily imagine a situation where a code like this: db.users.remove({_id : user.id}); would be called with an user object which doesn&apos;t have id set, which would end up calling db.users.remove({_id : undefined}); and thus removing all users from the entire database.&lt;/p&gt;

&lt;p&gt;I know that the programmer should have prevented this error, but I also believe that the database should be smart enough to prevent such disaster. After all, the programmer should be using .remove() without any additional parameters or just .drop() if he wants to erase the entire collection.&lt;/p&gt;</description>
                <environment></environment>
        <key id="14264">SERVER-2384</key>
            <summary>remove({_id : undefined}); removes everything from collection</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="eliot">Eliot Horowitz</assignee>
                                    <reporter username="garo">Juho M&#228;kinen</reporter>
                        <labels>
                    </labels>
                <created>Thu, 20 Jan 2011 10:51:50 +0000</created>
                <updated>Tue, 12 Jul 2016 00:20:36 +0000</updated>
                            <resolved>Fri, 21 Jan 2011 07:51:59 +0000</resolved>
                                    <version>1.6.5</version>
                                    <fixVersion>1.7.5</fixVersion>
                                    <component>Querying</component>
                    <component>Shell</component>
                    <component>Usability</component>
                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="22570" author="auto" created="Fri, 21 Jan 2011 07:51:55 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;erh&apos;, u&apos;name&apos;: u&apos;Eliot Horowitz&apos;, u&apos;email&apos;: u&apos;eliot@10gen.com&apos;}
&lt;p&gt;Message: remove( &lt;/p&gt;
{ x : undefined }
&lt;p&gt; ) should not delete everything in the collection &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-2384&quot; title=&quot;remove({_id : undefined}); removes everything from collection&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-2384&quot;&gt;&lt;del&gt;SERVER-2384&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c31c7f322943034bd294993e832f51383799ee5f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c31c7f322943034bd294993e832f51383799ee5f&lt;/a&gt;&lt;/p&gt;</comment>
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