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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-26612] Add reporting of the number of documents found to the Bulk find() operations</title>
                <link>https://jira.mongodb.org/browse/SERVER-26612</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently bulk operations like this:&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;
		&lt;tbody &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-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;var ubo =  db.collName.initializeUnorderedBulkOp();&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;   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;for (var h=0; h&amp;lt;newDocArray.length; h++) {&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;   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;  bulkr.find({&quot;_id&quot;:newDocArray[h]._id}).replaceOne(newDocArray[h]);&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;   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;}&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;ubo.execute();&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;report nothing in the {{BulkWriteResult object }} object for documents in the newDocArray whose _id values don&apos;t match any documents in the collName collection.  This feature request is to add reporting on the number of documents found by each operation.&lt;/p&gt;</description>
                <environment></environment>
        <key id="323268">SERVER-26612</key>
            <summary>Add reporting of the number of documents found to the Bulk find() operations</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-stm">Backlog - Server Tooling and Methods (STM)</assignee>
                                    <reporter username="william.byrne@mongodb.com">William Byrne III</reporter>
                        <labels>
                            <label>move-stm</label>
                    </labels>
                <created>Wed, 12 Oct 2016 23:23:31 +0000</created>
                <updated>Tue, 6 Dec 2022 04:14:14 +0000</updated>
                                                                            <component>Shell</component>
                                        <votes>6</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="4539774" author="steven.vannelli" created="Tue, 10 May 2022 21:23:23 +0000"  >&lt;p&gt;Moving this ticket to the Backlog and removing the &quot;Backlog&quot; fixVersion as per our latest policy for using fixVersions. &lt;/p&gt;</comment>
                            <comment id="1406946" author="william.byrne" created="Thu, 13 Oct 2016 00:38:38 +0000"  >&lt;p&gt;See the attachment fr2.js for sample code that exhibits the issue.  The oldData collection has _id&apos;s 0,1,2.  The newData array has _ids 1,2,3.  The bulk update to replace documents in the collection with documents from the array returns &quot;nMatched&quot; : 2 and &quot;nModified&quot; : 2.  This is because the unmatched documents aren&apos;t an error, but it means you have to rerun the find part of each operation to identify those that found 0 documents. &lt;/p&gt;

&lt;p&gt;In more detail, what is being requested is:&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;a boolean input parameter to be added to `Bulk.execute` (or to both the ordered and unordered `Bulk` initialize operations) called something like `reportFoundDocs`&lt;/li&gt;
	&lt;li&gt;if `reportFoundDocs` is false (the default if it is unset), the `Bulk` operations behave as they do now&lt;/li&gt;
	&lt;li&gt;if `reportFoundDocs` is true, the `BulkWriteResult` object will include an additional field that is an array of documents with this structure:
	&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
		&lt;li&gt;`BulkWriteResult.foundDocs.index`: a zero based index that identifies the operation in the bulk operations list&lt;/li&gt;
		&lt;li&gt;`BulkWriteResult.foundDocs.nFound`: the number of documents the operation&apos;s find(..) found&lt;/li&gt;
		&lt;li&gt;`BulkWriteResult.foundDocs.nModified`: the number of documents the operation modified&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;The `foundDocs` field will be populated by `Bulk` operations that include a `find()`:  &lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;`Bulk.find().removeOne()`&lt;/li&gt;
	&lt;li&gt;`Bulk.find().remove()`&lt;/li&gt;
	&lt;li&gt;`Bulk.find().replaceOne()`&lt;/li&gt;
	&lt;li&gt;`Bulk.find().updateOne()`&lt;/li&gt;
	&lt;li&gt;`Bulk.find().update()`&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;If `foundDocs.nFound` = 0, the replacement document did not get written to the collection.  If  `foundDocs.nFound` &amp;gt; `foundDocs.nModified` then the desired document might not have been replaced.&lt;/p&gt;</comment>
                    </comments>
                    <attachments>
                            <attachment id="141347" name="fr2.js" size="779" author="william.byrne@mongodb.com" created="Thu, 13 Oct 2016 00:20:25 +0000"/>
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