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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-81024] Validation improvements for time-series duplicate index field names</title>
                <link>https://jira.mongodb.org/browse/SERVER-81024</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;If a time-series bucket fails to pass the collection&apos;s schema, we &lt;a href=&quot;https://github.com/mongodb/mongo/blob/7f42924bf009ec67df3b2d8e32d56bb387037c27/src/mongo/db/catalog/validate_adaptor.cpp#L760&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;skip&lt;/a&gt; running any time-series specific checks. A bucket will fail to pass the schema check if there are duplicate index field names present (&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-80358&quot; title=&quot;Time-series inserts generate duplicate index fields in bucket document&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-80358&quot;&gt;&lt;del&gt;SERVER-80358&lt;/del&gt;&lt;/a&gt;). Validate will return {valid: true} and log a warning in this case:&lt;/p&gt;
&lt;p/&gt;
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&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;A BSON document contains a duplicate field name : &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;1&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; in element with field name &lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&apos;data.1&apos;&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; in object with _id: ObjectId(&lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&apos;65006634684c43032fbe1693&apos;&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;)&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;

&lt;p&gt;To improve the detection of this issue we can update the check added in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-80356&quot; title=&quot;Log previous field index when time-series bucket data field is not consecutively increasing during validate&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-80356&quot;&gt;&lt;del&gt;SERVER-80356&lt;/del&gt;&lt;/a&gt;. We should add extra logic to help us distinguish between safe and unsafe cases (missing fields). This new check would be an error instead of a warning, and we can improve the error message.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2441030">SERVER-81024</key>
            <summary>Validation improvements for time-series duplicate index field names</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="shinyee.tan@mongodb.com">Shin Yee Tan</assignee>
                                    <reporter username="gregory.wlodarek@mongodb.com">Gregory Wlodarek</reporter>
                        <labels>
                    </labels>
                <created>Wed, 13 Sep 2023 13:49:29 +0000</created>
                <updated>Tue, 19 Sep 2023 21:24:36 +0000</updated>
                            <resolved>Tue, 19 Sep 2023 21:21:52 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>8</watches>
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            <issuekey id="2424866">SERVER-80358</issuekey>
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