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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-28055] How does mongodb guarantee the compound index order with javascript un-ordered object literal creation?</title>
                <link>https://jira.mongodb.org/browse/SERVER-28055</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Such as db.products.createIndex( &lt;/p&gt;
{ &quot;item&quot;: 1, &quot;stock&quot;: 1 }
&lt;p&gt; ) &lt;br/&gt;
Quoted from &lt;a href=&quot;https://docs.mongodb.com/manual/tutorial/sort-results-with-indexes/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/manual/tutorial/sort-results-with-indexes/&lt;/a&gt; &lt;br/&gt;
You can specify a sort on all the keys of the index or on a subset; however, the sort keys must be listed in the same order as they appear in the index.&lt;br/&gt;
As there is no order in javascript object, how could mongodb get an order from that?&lt;/p&gt;</description>
                <environment></environment>
        <key id="355483">SERVER-28055</key>
            <summary>How does mongodb guarantee the compound index order with javascript un-ordered object literal creation?</summary>
                <type id="6" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14720&amp;avatarType=issuetype">Question</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="-1">Unassigned</assignee>
                                    <reporter username="narychen">Roben</reporter>
                        <labels>
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                <created>Sun, 19 Feb 2017 00:50:57 +0000</created>
                <updated>Fri, 24 Feb 2017 23:14:01 +0000</updated>
                            <resolved>Fri, 24 Feb 2017 23:14:01 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>10</watches>
                                                                                                                <comments>
                            <comment id="1509378" author="mark.agarunov" created="Fri, 24 Feb 2017 23:06:02 +0000"  >&lt;p&gt;Hello &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=narychen&quot; class=&quot;user-hover&quot; rel=&quot;narychen&quot;&gt;narychen&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;Thanks for your report. While you are correct that the ECMAScript specification does not specfify the ordering or enumeration of an object&apos;s properties, the specific implementation used in the context of the index is ordered in MongoDB&apos;s query interface.&lt;/p&gt;

&lt;p&gt;If you would like to get more information about the specific implementation details of MongoDB&apos;s interface, consider making a post on the &lt;a href=&quot;https://groups.google.com/forum/#!forum/mongodb-dev&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;MongoDB Developer User Group&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Please note that SERVER project is for reporting bugs or feature suggestions for the MongoDB server. For MongoDB-related support discussion please post on the &lt;a href=&quot;http://groups.google.com/group/mongodb-user&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongodb-user group&lt;/a&gt; or &lt;a href=&quot;http://stackoverflow.com/questions/tagged/mongodb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Stack Overflow with the &lt;tt&gt;mongodb&lt;/tt&gt; tag&lt;/a&gt;. A question like this involving more discussion would be best posted on the mongodb-user group.&lt;/p&gt;

&lt;p&gt;Thanks,&lt;br/&gt;
Mark&lt;/p&gt;</comment>
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