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    <title>MongoDB Jira</title>
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    <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-55620] Coverity analysis defect 117956: Uninitialized scalar field</title>
                <link>https://jira.mongodb.org/browse/SERVER-55620</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Uninitialized scalar field&lt;/p&gt;

&lt;p&gt; The field will contain an arbitrary value left over from earlier computations. A scalar field is not initialized by the constructor&lt;br/&gt;
/src/mongo/db/exec/sbe/stages/scan.h:174: UNINIT_CTOR 117956 Class member declaration for &quot;_catalogEpoch&quot;.&lt;br/&gt;
/src/mongo/db/exec/sbe/stages/scan.cpp:385: UNINIT_CTOR 117956 Non-static class member &quot;_catalogEpoch&quot; is not initialized in this constructor nor in any functions that it calls.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1662973">SERVER-55620</key>
            <summary>Coverity analysis defect 117956: Uninitialized scalar field</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="13202">Works as Designed</resolution>
                                        <assignee username="david.storch@mongodb.com">David Storch</assignee>
                                    <reporter username="xgen-internal-coverity">Coverity Collector User</reporter>
                        <labels>
                            <label>coverity</label>
                    </labels>
                <created>Tue, 30 Mar 2021 13:04:55 +0000</created>
                <updated>Fri, 27 Oct 2023 13:52:27 +0000</updated>
                            <resolved>Tue, 30 Mar 2021 18:10:16 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3692074" author="david.storch" created="Tue, 30 Mar 2021 18:10:16 +0000"  >&lt;p&gt;This is a false positive, so I&apos;m closing it as &quot;Works as Designed&quot;. It is true that the SBE &lt;tt&gt;scan&lt;/tt&gt; stage (as well as &lt;tt&gt;pscan&lt;/tt&gt; and &lt;tt&gt;ixscan&lt;/tt&gt;) do not initialize their &lt;tt&gt;_catalogEpoch&lt;/tt&gt; member variable on construction. Instead, the design is to initialized it during &lt;tt&gt;prepare()&lt;/tt&gt; and subsequently make use of it when the plan is save/restored in order to detect whether the catalog has been closed and reopened.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=milkie&quot; class=&quot;user-hover&quot; rel=&quot;milkie&quot;&gt;milkie&lt;/a&gt; I seem to no longer be able to log into Coverity in order to mark this report as a false positive. Do you know who might be able to help me log in?&lt;/p&gt;</comment>
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