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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-1007] rewrite $in queries on shard key to only include keys on each shard</title>
                <link>https://jira.mongodb.org/browse/SERVER-1007</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description></description>
                <environment></environment>
        <key id="11768">SERVER-1007</key>
            <summary>rewrite $in queries on shard key to only include keys on each shard</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-query-optimization">Backlog - Query Optimization</assignee>
                                    <reporter username="mathias@mongodb.com">Mathias Stearn</reporter>
                        <labels>
                            <label>graphquery</label>
                            <label>qopt-team</label>
                    </labels>
                <created>Mon, 12 Apr 2010 23:11:03 +0000</created>
                <updated>Tue, 6 Dec 2022 05:49:44 +0000</updated>
                                                                            <component>Sharding</component>
                                        <votes>12</votes>
                                    <watches>40</watches>
                                                                                                                <comments>
                            <comment id="806202" author="rskvazh" created="Fri, 16 Jan 2015 06:48:30 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=asya&quot; class=&quot;user-hover&quot; rel=&quot;asya&quot;&gt;asya&lt;/a&gt;, yes, we already do this the same way and it helps a lot. Thx.&lt;/p&gt;</comment>
                            <comment id="805863" author="asya" created="Thu, 15 Jan 2015 22:07:55 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=rskvazh&quot; class=&quot;user-hover&quot; rel=&quot;rskvazh&quot;&gt;rskvazh&lt;/a&gt; if you send mongos a bulk update each with single shard key, it will distribute them to appropriate shards (maybe sure that you specify &lt;/p&gt;
{ordered:false}
&lt;p&gt; so it can send them in parallel).&lt;/p&gt;

&lt;p&gt;However, whether that will be &lt;b&gt;faster&lt;/b&gt; to complete than a single update sent to all shards depends on your specific data distribution and workloads.  I would recommend testing it out.&lt;/p&gt;</comment>
                            <comment id="763283" author="rskvazh" created="Thu, 13 Nov 2014 13:18:57 +0000"  >&lt;p&gt;What about this ticket? Should we use Bulk operations for writes as a workaround?&lt;/p&gt;</comment>
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            <issuekey id="17623">SERVER-3163</issuekey>
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            <issuekey id="71539">SERVER-9332</issuekey>
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            <issuelink>
            <issuekey id="608855">SERVER-37279</issuekey>
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            <issuekey id="1385949">SERVER-50299</issuekey>
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