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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-62495] Ensure that CompileCtx::accumulator is set before accessing it</title>
                <link>https://jira.mongodb.org/browse/SERVER-62495</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://github.com/10gen/mongo/blob/207e7d16e4a24d4a16c2ab594bf5122e50aa8c4e/src/mongo/db/exec/sbe/expressions/expression.h#L241&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;CompileCtx::accumulator&lt;/a&gt; is accessed when compiling &lt;a href=&quot;https://github.com/10gen/mongo/blob/207e7d16e4a24d4a16c2ab594bf5122e50aa8c4e/src/mongo/db/exec/sbe/expressions/expression.cpp#L588&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;EFunction&lt;/a&gt; related to aggregate.&lt;/p&gt;

&lt;p&gt;This requires a corresponding assignment before the compile is called, like in &lt;a href=&quot;https://github.com/10gen/mongo/blob/857e5ff84b57167abcfb875c56a3cda1464de563/src/mongo/db/exec/sbe/stages/hash_agg.cpp#L111&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;HashAggStage::prepare&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&#160;&lt;br/&gt;
Otherwise,&#160;CompileCtx::accessor is optional.&lt;/p&gt;

&lt;p&gt;At minimum we should assert that the CompileCtx::accessor is set to prevent segfault.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1961451">SERVER-62495</key>
            <summary>Ensure that CompileCtx::accumulator is set before accessing it</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="erin.zhu@mongodb.com">Erin Zhu</assignee>
                                    <reporter username="anna.wawrzyniak@mongodb.com">Anna Wawrzyniak</reporter>
                        <labels>
                            <label>neweng</label>
                    </labels>
                <created>Mon, 10 Jan 2022 23:02:53 +0000</created>
                <updated>Tue, 26 Jul 2022 20:43:23 +0000</updated>
                            <resolved>Tue, 26 Jul 2022 20:43:23 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="4638420" author="xgen-internal-githook" created="Fri, 24 Jun 2022 15:33:32 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Erin Zhu&apos;, &apos;email&apos;: &apos;erin.zhu@mongodb.com&apos;, &apos;username&apos;: &apos;erinzhu001&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62495&quot; title=&quot;Ensure that CompileCtx::accumulator is set before accessing it&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62495&quot;&gt;&lt;del&gt;SERVER-62495&lt;/del&gt;&lt;/a&gt; Added assert statement to check that ctx.accumulator is set before access&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d7e4648b8b5b9fa3f7f5f6fe422f6ece49f22b90&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d7e4648b8b5b9fa3f7f5f6fe422f6ece49f22b90&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1874553">SERVER-59960</issuekey>
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