<!-- 
RSS generated by JIRA (9.7.1#970001-sha1:2222b88b221c4928ef0de3161136cc90c8356a66) at Thu Feb 08 07:46:35 UTC 2024

It is possible to restrict the fields that are returned in this document by specifying the 'field' parameter in your request.
For example, to request only the issue key and summary append 'field=key&field=summary' to the URL of your request.
-->
<rss version="0.92" >
<channel>
    <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>[DOCS-3820] Limitation on covered queries for sharding should also be included in the covered index tutorial</title>
                <link>https://jira.mongodb.org/browse/DOCS-3820</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;p&gt;Due to &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-5022&quot; title=&quot;full document always loaded for matches if there is a chunk manager&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-5022&quot;&gt;&lt;del&gt;SERVER-5022&lt;/del&gt;&lt;/a&gt;, it is currently not possible to have fully covered sharded queries.&lt;/p&gt;

&lt;p&gt;This is noted in the Limits section of the manual: &lt;a href=&quot;http://docs.mongodb.org/manual/reference/limits/#Covered-Queries-in-Sharded-Clusters&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://docs.mongodb.org/manual/reference/limits/#Covered-Queries-in-Sharded-Clusters&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;.. but not mentioned in the tutorial on creating covered queries:&lt;br/&gt;
 &lt;a href=&quot;http://docs.mongodb.org/manual/tutorial/create-indexes-to-support-queries/#create-indexes-that-support-covered-queries&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://docs.mongodb.org/manual/tutorial/create-indexes-to-support-queries/#create-indexes-that-support-covered-queries&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="149126">DOCS-3820</key>
            <summary>Limitation on covered queries for sharding should also be included in the covered index tutorial</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="stephen.steneker@mongodb.com">Stennie Steneker</reporter>
                        <labels>
                    </labels>
                <created>Fri, 25 Jul 2014 15:02:25 +0000</created>
                <updated>Wed, 28 Jan 2015 15:35:28 +0000</updated>
                            <resolved>Mon, 22 Dec 2014 16:56:17 +0000</resolved>
                                    <version>mongodb-2.6</version>
                                    <fixVersion>v1.3.9</fixVersion>
                    <fixVersion>v1.3.16</fixVersion>
                                    <component>manual</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="815406" author="kay.kim@10gen.com" created="Wed, 28 Jan 2015 15:35:28 +0000"  >&lt;p&gt;no worries : )&lt;/p&gt;</comment>
                            <comment id="815359" author="salty-horse" created="Wed, 28 Jan 2015 14:47:10 +0000"  >&lt;p&gt;My bad. I assumed it was a regression. It&apos;s a new feature, and documented in the 2.8 release notes in the General Improvements section.&lt;/p&gt;</comment>
                            <comment id="815325" author="kay.kim@10gen.com" created="Wed, 28 Jan 2015 14:26:30 +0000"  >&lt;p&gt;Hi Ori &amp;#8211; &lt;br/&gt;
Sure.  Once we have the new ticket, we can schedule it and such.&lt;/p&gt;

&lt;p&gt;Kay&lt;/p&gt;
</comment>
                            <comment id="815283" author="salty-horse" created="Wed, 28 Jan 2015 13:25:56 +0000"  >&lt;p&gt;If this limitation is a regression from 2.4 to 2.6, it should be added to the 2.6 release notes (specifically, the Compatibility Changes).&lt;/p&gt;

&lt;p&gt;Should I open a new bug?&lt;/p&gt;</comment>
                            <comment id="792983" author="kay.kim@10gen.com" created="Tue, 23 Dec 2014 14:55:12 +0000"  >&lt;p&gt;no worries.&lt;/p&gt;</comment>
                            <comment id="792870" author="gianfranco" created="Tue, 23 Dec 2014 09:33:17 +0000"  >&lt;p&gt;you&apos;re right, sorry.&lt;/p&gt;

&lt;p&gt;thanks for this&lt;/p&gt;</comment>
                            <comment id="792151" author="xgen-internal-githook" created="Mon, 22 Dec 2014 16:55:03 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;kay-kim&apos;, u&apos;name&apos;: u&apos;kay&apos;, u&apos;email&apos;: u&apos;kay.kim@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-3820&quot; title=&quot;Limitation on covered queries for sharding should also be included in the covered index tutorial&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-3820&quot;&gt;&lt;del&gt;DOCS-3820&lt;/del&gt;&lt;/a&gt; reorder covered query limitations list&lt;br/&gt;
Branch: v2.6&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/f69bdc239721030bf3426c3d555f6686d0446e39&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/f69bdc239721030bf3426c3d555f6686d0446e39&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="792150" author="xgen-internal-githook" created="Mon, 22 Dec 2014 16:54:13 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;kay-kim&apos;, u&apos;name&apos;: u&apos;kay&apos;, u&apos;email&apos;: u&apos;kay.kim@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-3820&quot; title=&quot;Limitation on covered queries for sharding should also be included in the covered index tutorial&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-3820&quot;&gt;&lt;del&gt;DOCS-3820&lt;/del&gt;&lt;/a&gt; reorder covered query limitations list&lt;br/&gt;
Branch: v2.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/1ff613fb36c7d1a22300553e78d7267a66e0d430&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/1ff613fb36c7d1a22300553e78d7267a66e0d430&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="792049" author="kay.kim@10gen.com" created="Mon, 22 Dec 2014 15:09:52 +0000"  >&lt;p&gt;The tutorial for covering a query has moved to this page: &lt;a href=&quot;http://docs.mongodb.org/manual/core/query-optimization/#covering-a-query&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://docs.mongodb.org/manual/core/query-optimization/#covering-a-query&lt;/a&gt; &lt;br/&gt;
and the limitation regarding the covered indexes is in the subsection &lt;a href=&quot;http://docs.mongodb.org/manual/core/query-optimization/#limitations&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://docs.mongodb.org/manual/core/query-optimization/#limitations&lt;/a&gt;&lt;br/&gt;
and the sharded collection is the last bulleted point in the list (line 160-161 in the commit)&lt;/p&gt;

&lt;p&gt;I&apos;ll move that last bulleted point up for higher visibility. &lt;/p&gt;</comment>
                            <comment id="791674" author="gianfranco" created="Sun, 21 Dec 2014 16:42:05 +0000"  >&lt;p&gt;Reopening this ticket after the limitation has been removed again from this tutorial (&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-2473&quot; title=&quot;Covered index queries in sharded environment&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-2473&quot;&gt;&lt;del&gt;DOCS-2473&lt;/del&gt;&lt;/a&gt;):&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/f3e1d02e82ccac429a30175d125bda8226ca5d66&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/f3e1d02e82ccac429a30175d125bda8226ca5d66&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Maybe we can just point out to this limitations section:&lt;br/&gt;
&lt;a href=&quot;http://docs.mongodb.org/manual/core/query-optimization/#limitations&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://docs.mongodb.org/manual/core/query-optimization/#limitations&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Please note that in 2.8 this has changed: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-4571&quot; title=&quot;In 2.8 sharded clusters support covered queries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-4571&quot;&gt;&lt;del&gt;DOCS-4571&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="682863" author="xgen-internal-githook" created="Wed, 6 Aug 2014 16:34:55 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;kay-kim&apos;, u&apos;name&apos;: u&apos;kay&apos;, u&apos;email&apos;: u&apos;kay.kim@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-3820&quot; title=&quot;Limitation on covered queries for sharding should also be included in the covered index tutorial&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-3820&quot;&gt;&lt;del&gt;DOCS-3820&lt;/del&gt;&lt;/a&gt; covered indexes and sharded collections&lt;br/&gt;
Branch: v2.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/80d372f2c75a94c47f414882aa37d4d2b72b1c50&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/80d372f2c75a94c47f414882aa37d4d2b72b1c50&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="682840" author="xgen-internal-githook" created="Wed, 6 Aug 2014 16:16:08 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;kay-kim&apos;, u&apos;name&apos;: u&apos;kay&apos;, u&apos;email&apos;: u&apos;kay.kim@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-3820&quot; title=&quot;Limitation on covered queries for sharding should also be included in the covered index tutorial&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-3820&quot;&gt;&lt;del&gt;DOCS-3820&lt;/del&gt;&lt;/a&gt; covered indexes and sharded collections&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/955fdbe3f8ce6bae3e7f8affb49c28f32b373a24&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/955fdbe3f8ce6bae3e7f8affb49c28f32b373a24&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="175661">DOCS-4571</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                    </issuelinks>
                <attachments>
                    </attachments>
                <subtasks>
                    </subtasks>
                <customfields>
                                                <customfield id="customfield_10050" key="com.atlassian.jira.toolkit:comments">
                        <customfieldname># Replies</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>12.0</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                    <customfield id="customfield_10855" key="com.atlassian.jira.plugin.system.customfieldtypes:float">
                        <customfieldname>Actual Time</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>4.0</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        <customfield id="customfield_10055" key="com.atlassian.jira.ext.charting:firstresponsedate">
                        <customfieldname>Date of 1st Reply</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>Wed, 6 Aug 2014 16:16:08 +0000</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_10052" key="com.atlassian.jira.toolkit:dayslastcommented">
                        <customfieldname>Days since reply</customfieldname>
                        <customfieldvalues>
                                        9 years, 3 weeks ago
    
                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_18254" key="com.onresolve.jira.groovy.groovyrunner:scripted-field">
                        <customfieldname>Dependencies</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue><![CDATA[]]></customfieldvalue>


                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_15850" key="com.atlassian.jira.plugins.jira-development-integration-plugin:devsummary">
                        <customfieldname>Development</customfieldname>
                        <customfieldvalues>
                            
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    <customfield id="customfield_10057" key="com.atlassian.jira.toolkit:lastusercommented">
                        <customfieldname>Last comment by Customer</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>true</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_10056" key="com.atlassian.jira.toolkit:lastupdaterorcommenter">
                        <customfieldname>Last commenter</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>jess.mokrzecki@mongodb.com</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_11151" key="com.atlassian.jira.toolkit:LastCommentDate">
                        <customfieldname>Last public comment date</customfieldname>
                        <customfieldvalues>
                            9 years, 3 weeks ago
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                            <customfield id="customfield_10051" key="com.atlassian.jira.toolkit:participants">
                        <customfieldname>Participants</customfieldname>
                        <customfieldvalues>
                                        <customfieldvalue>gianfranco</customfieldvalue>
            <customfieldvalue>xgen-internal-githook</customfieldvalue>
            <customfieldvalue>kay.kim@mongodb.com</customfieldvalue>
            <customfieldvalue>salty-horse</customfieldvalue>
            <customfieldvalue>stephen.steneker@mongodb.com</customfieldvalue>
    
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                        <customfield id="customfield_14254" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>Product Rank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>1|hrqvx3:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                <customfield id="customfield_12550" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>Rank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>2|hs0trb:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_10558" key="com.pyxis.greenhopper.jira:gh-global-rank">
                        <customfieldname>Rank (Obsolete)</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>129272</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    <customfield id="customfield_10053" key="com.atlassian.jira.ext.charting:timeinstatus">
                        <customfieldname>Time In Status</customfieldname>
                        <customfieldvalues>
                            
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            <customfield id="customfield_14350" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>serverRank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>1|hryrqn:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                </customfields>
    </item>
</channel>
</rss>