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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>
    </build-info>


<item>
            <title>[SERVER-6979] hint with { $natural:-1 } returns documents in forward order</title>
                <link>https://jira.mongodb.org/browse/SERVER-6979</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When a $natural hint is parsed, the directional argument is ignored.  This can cause an unexpected result, because hinting $natural in reverse direction does a $natural query in forward direction.  (Reverse natural order can be specified using sort rather than hint.)  The argument passed to hint is generally used identify an index, not the direction the index should be traversed (which can be specified by sort).  I think &lt;/p&gt;
{ $natural:-1 }
&lt;p&gt; should be treated as an invalid hint, as the schema for an unindexed scan is &lt;/p&gt;
{ $natural:1 }
&lt;p&gt; (different).&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;checkResultSet( [ 0, 1 ], c.find().sort( { $natural:1 } ).toArray() );&lt;/span&gt;&lt;/pre&gt;
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				&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;checkResultSet( [ 0, 1 ], c.find().hint( { $natural:1 } ).toArray() );&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;checkResultSet( [ 1, 0 ], c.find().sort( { $natural:-1 } ).toArray() );&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&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;&amp;nbsp;&lt;/pre&gt;
			&lt;/td&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;// This returns results as $natural:1, should uassert instead (I think).&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&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;checkResultSet( [ 1, 0 ], c.find().hint( { $natural:-1 } ).toArray() );&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="50001">SERVER-6979</key>
            <summary>hint with { $natural:-1 } returns documents in forward order</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="3">Duplicate</resolution>
                                        <assignee username="david.storch@mongodb.com">David Storch</assignee>
                                    <reporter username="aaron">Aaron Staple</reporter>
                        <labels>
                    </labels>
                <created>Sun, 9 Sep 2012 18:14:05 +0000</created>
                <updated>Wed, 28 Jan 2015 20:37:08 +0000</updated>
                            <resolved>Wed, 28 Jan 2015 20:34:54 +0000</resolved>
                                                                    <component>Querying</component>
                                        <votes>1</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="815819" author="david.storch" created="Wed, 28 Jan 2015 20:34:40 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=jonathan.abrahams&quot; class=&quot;user-hover&quot; rel=&quot;jonathan.abrahams&quot;&gt;jonathan.abrahams&lt;/a&gt;, the 2.6 behavior is correct. This issue has been fixed in the 2.6 query system. &lt;tt&gt;$natural&lt;/tt&gt; with &lt;tt&gt;.hint()&lt;/tt&gt; and &lt;tt&gt;$natural&lt;/tt&gt; with &lt;tt&gt;.sort()&lt;/tt&gt; now have the same meaning. Resolving as a duplicate of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-10026&quot; title=&quot;New query system&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-10026&quot;&gt;&lt;del&gt;SERVER-10026&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="650302" author="jonathan.abrahams" created="Mon, 7 Jul 2014 13:48:10 +0000"  >&lt;p&gt;In 2.6, hint({$natural: -1}) returns the documents in reverse order, which is different behavior than 2.4. Clarification of the behavior for $natural is required.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
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                                        <issuelink>
            <issuekey id="145392">SERVER-14459</issuekey>
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                                                        </outwardlinks>
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            <issuekey id="65229">SERVER-8564</issuekey>
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