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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-23172] Allow use of indices for collation-aware queries that match nested objects or arrays</title>
                <link>https://jira.mongodb.org/browse/SERVER-23172</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;On our first pass of making index use collation-aware, we disallowed using indices for queries with non-null collators that match nested objects or arrays containing strings. In order to allow index use in this case, we must:&lt;br/&gt;
--Update index selection. Currently if a query matches nested objects or arrays, then in order to select an index, the query and the index must both have null collators. We must remove the code that rejects indices in this case.&lt;br/&gt;
--Update index key generation. Currently only strings at the top level are transformed into ComparisonKeys. We must also transform strings in nested objects and arrays.&lt;br/&gt;
--Update index bounds building. Similarly to index key generation, we must transform strings in nested objects and arrays in our index bounds.&lt;/p&gt;</description>
                <environment></environment>
        <key id="272918">SERVER-23172</key>
            <summary>Allow use of indices for collation-aware queries that match nested objects or arrays</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="9">Done</resolution>
                                        <assignee username="david.hatch">David Hatch</assignee>
                                    <reporter username="tess.avitabile@mongodb.com">Tess Avitabile</reporter>
                        <labels>
                            <label>todo_in_code</label>
                    </labels>
                <created>Wed, 16 Mar 2016 14:30:12 +0000</created>
                <updated>Mon, 6 Nov 2017 17:52:37 +0000</updated>
                            <resolved>Thu, 7 Jul 2016 18:52:01 +0000</resolved>
                                                    <fixVersion>3.3.10</fixVersion>
                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1317207" author="xgen-internal-githook" created="Thu, 7 Jul 2016 18:51:10 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dhatch&apos;, u&apos;name&apos;: u&apos;David Hatch&apos;, u&apos;email&apos;: u&apos;david.hatch@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-23172&quot; title=&quot;Allow use of indices for collation-aware queries that match nested objects or arrays&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-23172&quot;&gt;&lt;del&gt;SERVER-23172&lt;/del&gt;&lt;/a&gt; Implement nested string translation iteratively.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/23ded63a51236acc586ad0850f2359d6bcc02c97&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/23ded63a51236acc586ad0850f2359d6bcc02c97&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1303312" author="xgen-internal-githook" created="Wed, 22 Jun 2016 19:47:20 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dhatch&apos;, u&apos;name&apos;: u&apos;David Hatch&apos;, u&apos;email&apos;: u&apos;david.hatch@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-23172&quot; title=&quot;Allow use of indices for collation-aware queries that match nested objects or arrays&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-23172&quot;&gt;&lt;del&gt;SERVER-23172&lt;/del&gt;&lt;/a&gt; Allow use of indices for collation-aware queries that match nested objects or arrays.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/40f20eca105a5e06a72df583ac654f946e9b058e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/40f20eca105a5e06a72df583ac654f946e9b058e&lt;/a&gt;&lt;/p&gt;</comment>
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