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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-71222] CollectionCatalog::openCollection should support lookup by NamespaceStringOrUUID</title>
                <link>https://jira.mongodb.org/browse/SERVER-71222</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently &lt;tt&gt;CollectionCatalog::openCollection&lt;/tt&gt; only &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e1a65fd76f0f402122c4be3c01169b125cdfaaf5/src/mongo/db/catalog/collection_catalog.h#L207&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;supports lookup by NamespaceString&lt;/a&gt;. However, in some cases, the user may provide a UUID rather than a namespace. In these cases, the UUID needs to be resolved to a namespace to use &lt;tt&gt;openCollection&lt;/tt&gt; - but the &lt;tt&gt;CollectionCatalog&lt;/tt&gt; does not support a way to resolve UUIDs at a time in the past. This means that if the user wants to read a collection by UUID for a UUID that existed in the past, but no longer exists in the latest version of the catalog, they cannot successfully find the &lt;tt&gt;NamespaceString&lt;/tt&gt; for that UUID, and so cannot call &lt;tt&gt;openCollection&lt;/tt&gt;. But the whole point of &lt;tt&gt;openCollection&lt;/tt&gt; is to be able to read collections in the past! So we need to change &lt;tt&gt;openCollection&lt;/tt&gt; to support lookup by &lt;tt&gt;NamespaceStringOrUUID&lt;/tt&gt;. &lt;/p&gt;

&lt;p&gt;Alternatively, we could add a variant of &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e1a65fd76f0f402122c4be3c01169b125cdfaaf5/src/mongo/db/catalog/collection_catalog.h#L449-L450&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;CollectionCatalog::resolveNamespaceStringOrUUID&lt;/tt&gt;&lt;/a&gt; that takes in a timestamp, and then we could call that function to get a &lt;tt&gt;NamespaceString&lt;/tt&gt; and then pass that to the existing version of &lt;tt&gt;openCollection&lt;/tt&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2179601">SERVER-71222</key>
            <summary>CollectionCatalog::openCollection should support lookup by NamespaceStringOrUUID</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="gregory.wlodarek@mongodb.com">Gregory Wlodarek</assignee>
                                    <reporter username="matthew.saltz@mongodb.com">Matthew Saltz</reporter>
                        <labels>
                    </labels>
                <created>Wed, 9 Nov 2022 18:50:31 +0000</created>
                <updated>Sun, 29 Oct 2023 21:30:49 +0000</updated>
                            <resolved>Thu, 16 Feb 2023 18:18:04 +0000</resolved>
                                                    <fixVersion>7.0.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="5204764" author="xgen-internal-githook" created="Thu, 16 Feb 2023 18:16:56 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Wlodarek&apos;, &apos;email&apos;: &apos;gregory.wlodarek@mongodb.com&apos;, &apos;username&apos;: &apos;GWlodarek&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-71222&quot; title=&quot;CollectionCatalog::openCollection should support lookup by NamespaceStringOrUUID&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-71222&quot;&gt;&lt;del&gt;SERVER-71222&lt;/del&gt;&lt;/a&gt; CollectionCatalog supports point-in-time catalog lookups by UUID&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c80e2a2a35ef841404af18cc2c4b754423edaa41&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c80e2a2a35ef841404af18cc2c4b754423edaa41&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2254114">SERVER-73679</issuekey>
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