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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-42275] mongod crashes after combining sort with hint in v2.5.4</title>
                <link>https://jira.mongodb.org/browse/SERVER-42275</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;While performing an academic experiment based on the random generation of a large set of tests to exercise the Query Language of MongoDB (all of which syntactically valid), a&#160;&lt;b&gt;possible&lt;/b&gt;&#160;bug was detected in one specific test that executes a query (find()), provides a hint() and sort()&apos;s its results.&lt;/p&gt;

&lt;p&gt;The same query was executed without sort() or hint() and was successful (i.e., only find()), with find().hint() and was also successful, with find().sort() an error is thrown in the assertion at line 1014 in query_planner.cpp, and with find().hint().sort() the mongod service crashes unexpectedly.&lt;/p&gt;</description>
                <environment></environment>
        <key id="860816">SERVER-42275</key>
            <summary>mongod crashes after combining sort with hint in v2.5.4</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="4">Incomplete</resolution>
                                        <assignee username="backlog-server-triage">Backlog - Triage Team</assignee>
                                    <reporter username="jagnelo@student.dei.uc.pt">Jo&#227;o Agnelo</reporter>
                        <labels>
                    </labels>
                <created>Thu, 18 Jul 2019 17:24:59 +0000</created>
                <updated>Tue, 6 Dec 2022 02:53:45 +0000</updated>
                            <resolved>Mon, 22 Jul 2019 16:08:52 +0000</resolved>
                                                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="2336792" author="daniel.hatcher" created="Mon, 22 Jul 2019 16:08:52 +0000"  >&lt;p&gt;Due to the old age of this version of MongoDB, I&apos;m going to close this ticket. Please re-open if you are able to reproduce against a modern version.&lt;/p&gt;</comment>
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                            <customfieldvalue>&lt;p&gt;(using the USA cities database)&lt;/p&gt;

&lt;p&gt;db = db.getMongo().getDB(&quot;usa&quot;);&lt;/p&gt;

&lt;p&gt; db.cities.ensureIndex({city: -1, pop: -1, state: -1});&lt;/p&gt;

&lt;p&gt; cursor = db.cities.find({&lt;em&gt;id: &apos;05356&apos;}).hint(&quot;city&lt;/em&gt;-1_pop_-1_state_-1&quot;).sort({_id: -1}).limit(100);&lt;/p&gt;

&lt;p&gt; cursor_explain = cursor.explain();&lt;br/&gt;
 cursor_count = cursor.count();&lt;br/&gt;
 cursor_size = cursor.size();&lt;/p&gt;

&lt;p&gt; db.getSisterDB(&quot;results&quot;)&lt;span class=&quot;error&quot;&gt;&amp;#91;TEST_NAME + &amp;quot;.explain&amp;quot;&amp;#93;&lt;/span&gt;.insert({explain: tojson(cursor_explain)});&lt;/p&gt;

&lt;p&gt; cursor.forEach(function(doc) {db.getSisterDB(&quot;results&quot;)&lt;span class=&quot;error&quot;&gt;&amp;#91;TEST_NAME&amp;#93;&lt;/span&gt;.insert(doc);});&lt;/p&gt;</customfieldvalue>

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