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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>[JAVA-2105] &quot;$explain&quot; in FindOptions.modifiers ignored when connected to 3.2 server</title>
                <link>https://jira.mongodb.org/browse/JAVA-2105</link>
                <project id="10006" key="JAVA">Java Driver</project>
                    <description>&lt;p&gt;When connected to a server whose version is &amp;lt;= 3.0, a $explain key added to FindOptions.modifiers will be included in the OP_QUERY document.  But with the introduction of the find command in server 3.2, a $explain modifier must be converted into an explain command instead, as the find command does not support explain.&lt;/p&gt;

&lt;p&gt;So this code:&lt;/p&gt;

&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&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-top: 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;MongoCollection&amp;lt;Document&amp;gt; collection = ...&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&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;collection.find().modifiers(&lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;new&lt;/span&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; Document(&lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;$explain&quot;&lt;/span&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;, &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;true&lt;/span&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;)).first()&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;should return the query plan, but when connected to a 3.2 server, it does not.  It will instead return the first document from a normal cursor on the collection.&lt;/p&gt;</description>
                <environment></environment>
        <key id="263130">JAVA-2105</key>
            <summary>&quot;$explain&quot; in FindOptions.modifiers ignored when connected to 3.2 server</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="9">Done</resolution>
                                        <assignee username="jeff.yemin@mongodb.com">Jeffrey Yemin</assignee>
                                    <reporter username="jeff.yemin@mongodb.com">Jeffrey Yemin</reporter>
                        <labels>
                    </labels>
                <created>Thu, 4 Feb 2016 16:37:58 +0000</created>
                <updated>Tue, 16 Feb 2016 15:24:23 +0000</updated>
                            <resolved>Tue, 9 Feb 2016 00:35:57 +0000</resolved>
                                    <version>3.2.0</version>
                                    <fixVersion>3.2.2</fixVersion>
                                    <component>Query Operations</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1174198" author="jeff.yemin" created="Tue, 16 Feb 2016 15:24:23 +0000"  >&lt;p&gt;Closed for 3.2.2 release&lt;/p&gt;</comment>
                            <comment id="1167314" author="xgen-internal-githook" created="Tue, 9 Feb 2016 00:35:44 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jyemin&apos;, u&apos;name&apos;: u&apos;Jeff Yemin&apos;, u&apos;email&apos;: u&apos;jeff.yemin@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-2105&quot; title=&quot;&amp;quot;$explain&amp;quot; in FindOptions.modifiers ignored when connected to 3.2 server&quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-2105&quot;&gt;&lt;del&gt;JAVA-2105&lt;/del&gt;&lt;/a&gt;: When $explain : true is in find operation modifiers, use explain command instead of find command when server version &amp;gt;= 3.2&lt;br/&gt;
Branch: 3.2.x&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-java-driver/commit/858498273dc44828868f7f09904fb9b769d0683a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-java-driver/commit/858498273dc44828868f7f09904fb9b769d0683a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1167240" author="xgen-internal-githook" created="Mon, 8 Feb 2016 23:50:54 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jyemin&apos;, u&apos;name&apos;: u&apos;Jeff Yemin&apos;, u&apos;email&apos;: u&apos;jeff.yemin@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-2105&quot; title=&quot;&amp;quot;$explain&amp;quot; in FindOptions.modifiers ignored when connected to 3.2 server&quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-2105&quot;&gt;&lt;del&gt;JAVA-2105&lt;/del&gt;&lt;/a&gt;: When $explain : true is in find operation modifiers, use explain command instead of find command when server version &amp;gt;= 3.2&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-java-driver/commit/d61e8514710381de2e7f524074cbc08df23af35e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-java-driver/commit/d61e8514710381de2e7f524074cbc08df23af35e&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="263091">JAVA-2104</issuekey>
        </issuelink>
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