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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-24674] Bounds generation for collation-aware queries should check that array and object bounds actually contain nested strings</title>
                <link>https://jira.mongodb.org/browse/SERVER-24674</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, as part of &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; collated queries will disallow use of a collated index if query bounds contain an object or array, even if the bounds do not contain a nested string.&lt;/p&gt;

&lt;p&gt;We should consider recursively exploring the bounds to determine if they do in fact contain a string.  Currently we are excessively strict in requiring index collation to match query-collation on certain queries.&lt;/p&gt;

&lt;p&gt;This behavior also affects covering analysis.&lt;/p&gt;

&lt;p&gt;The CollationIndexKey class is responsible for key translation and determining whether a given element requires a collation-aware index key.&lt;/p&gt;</description>
                <environment></environment>
        <key id="295319">SERVER-24674</key>
            <summary>Bounds generation for collation-aware queries should check that array and object bounds actually contain nested strings</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="david.hatch">David Hatch</reporter>
                        <labels>
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                <created>Mon, 20 Jun 2016 22:05:27 +0000</created>
                <updated>Tue, 6 Dec 2022 04:23:29 +0000</updated>
                                                                            <component>Querying</component>
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