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    <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-54401] Move shard filtering metadata out of the query layer and into the new CollectionPtr class</title>
                <link>https://jira.mongodb.org/browse/SERVER-54401</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The shard filtering/routing information should be moved from the query layer to the &lt;tt&gt;AutoGetCollection*/CollectionPtr&lt;/tt&gt;&#160;interfaces&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;With this change, we should reconsider whether the &lt;tt&gt;AutoGetCollection*&lt;/tt&gt;&#160;classes still need to explicitly check the shardVersion, as fetching the filtering metadata does the check implicitly.&lt;/li&gt;
	&lt;li&gt;&lt;tt&gt;ScopedCollectionDescription&lt;/tt&gt;, or whatever class is the filtering metadata, must not have any other sharding linking dependencies, and should be documented strongly to keep it that way. We do NOT want to link sharding into the execution catalog / code layer.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;----------------------------------------------------------------------------------------------------&lt;/p&gt;

&lt;p&gt;The new CollectionPtr accessible via the AutoGetCollection* collection helpers are passed throughout the code (replacing how we used to pass raw Collection pointers). The query code has access to the CollectionPtr, so placing the shard filtering metadata on the CollectionPtr during AutoGetCollection* setup would provide query code access.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1616472">SERVER-54401</key>
            <summary>Move shard filtering metadata out of the query layer and into the new CollectionPtr class</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="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="3">Duplicate</resolution>
                                        <assignee username="backlog-server-sharding-emea">[DO NOT USE] Backlog - Sharding EMEA</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
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                <created>Mon, 8 Feb 2021 19:10:40 +0000</created>
                <updated>Tue, 6 Dec 2022 01:35:04 +0000</updated>
                            <resolved>Thu, 17 Feb 2022 16:27:40 +0000</resolved>
                                                                                        <votes>0</votes>
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