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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-41551] Move check for empty string as index key value to catalog validation</title>
                <link>https://jira.mongodb.org/browse/SERVER-41551</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The next time we bump index version, move the check added by&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41263&quot; title=&quot;Disallow the empty string as an index key type &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41263&quot;&gt;&lt;del&gt;SERVER-41263&lt;/del&gt;&lt;/a&gt;&#160;that disallows empty strings as new index key values from the createIndexes command layer to the&#160;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/d5d674930f1c67f6c87d73715f82f608668d72fa/src/mongo/db/catalog/index_key_validate.cpp#L112&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;catalog validation layer&lt;/a&gt;, gated by the new index version.&lt;/p&gt;</description>
                <environment></environment>
        <key id="790180">SERVER-41551</key>
            <summary>Move check for empty string as index key value to catalog validation</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="xinhao.zhang@mongodb.com">Xin Hao Zhang</reporter>
                        <labels>
                            <label>index-version</label>
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                <created>Wed, 5 Jun 2019 19:03:47 +0000</created>
                <updated>Tue, 6 Dec 2022 02:57:44 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="2291918" author="craig.homa" created="Thu, 20 Jun 2019 19:22:44 +0000"  >&lt;p&gt;This is referring to key patterns like&lt;/p&gt;

{a: &apos;&apos;}

&lt;p&gt;We disallowed the creation of indexes with key patterns like this in 4.2 but there still could be indexes like this sitting around in old data files.&lt;/p&gt;</comment>
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