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    <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-49454] Update ElementIterator interface to provide option to omit entire array as last element</title>
                <link>https://jira.mongodb.org/browse/SERVER-49454</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;As stated in the &lt;a href=&quot;https://docs.google.com/document/d/1pY56bnQPPz9mkMqzwM_SpfoFSIW1BMlfhGQCxo1rv1U/edit#heading=h.jbr6wn633902&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;design document &lt;/a&gt;, we would like &lt;a href=&quot;https://github.com/mongodb/mongo/blob/2da98e01960de6d24174df19b0b926752b9dbddf/src/mongo/db/matcher/doc_validation_error.cpp#L444-L456&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;the array of &#8216;consideredValues&#8217; in the implicit array traversal case&lt;/a&gt; to not report the array containing every element at the end. This ticket should investigate how to update the ElementIterator interface to obtain this behavior. If it&#8217;s not too complicated, then this ticket should update the interface accordingly. &lt;/p&gt;

&lt;p&gt;A potential implementation would involve:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Updating the enum &#8216;LeafArrayBehavior&#8217; with a new value  (&#8216;kTraverseOmitArray&#8217; or something similar) to &lt;a href=&quot;https://github.com/mongodb/mongo/blob/2da98e01960de6d24174df19b0b926752b9dbddf/src/mongo/db/matcher/path.h#L46-L57&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;describe the desired behavior&lt;/a&gt;.&lt;/li&gt;
	&lt;li&gt;Updating the implementation of BSONElementIterator::&apos;next()&apos; to use the SimpleArrayElementIterator at the end of a path when it sees this new enum value, since &lt;a href=&quot;https://github.com/mongodb/mongo/blob/2da98e01960de6d24174df19b0b926752b9dbddf/src/mongo/db/matcher/path.h#L167-L178&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this iterator allows us to specify whether we want to return the array at the end or not&lt;/a&gt;.&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="1406845">SERVER-49454</key>
            <summary>Update ElementIterator interface to provide option to omit entire array as last element</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="13201">Fixed</resolution>
                                        <assignee username="mindaugas.malinauskas@mongodb.com">Mindaugas Malinauskas</assignee>
                                    <reporter username="mihai.andrei@mongodb.com">Mihai Andrei</reporter>
                        <labels>
                            <label>qexec-team</label>
                    </labels>
                <created>Fri, 10 Jul 2020 20:18:48 +0000</created>
                <updated>Sun, 29 Oct 2023 22:05:53 +0000</updated>
                            <resolved>Mon, 12 Oct 2020 14:40:36 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3439384" author="xgen-internal-githook" created="Mon, 12 Oct 2020 14:34:51 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Mindaugas Malinauskas&apos;, &apos;email&apos;: &apos;mindaugas.malinauskas@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49454&quot; title=&quot;Update ElementIterator interface to provide option to omit entire array as last element&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49454&quot;&gt;&lt;del&gt;SERVER-49454&lt;/del&gt;&lt;/a&gt; Update ElementIterator interface to provide option to omit entire array as last element&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8b72be99bf52e9f23a035c4e85020d94e27ea401&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8b72be99bf52e9f23a035c4e85020d94e27ea401&lt;/a&gt;&lt;/p&gt;</comment>
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