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    <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-76827] [CQF] Plan extractor passes wrong projections to EvaluationNode child</title>
                <link>https://jira.mongodb.org/browse/SERVER-76827</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When we extract an EvaluationNode from the memo, we &lt;a href=&quot;https://github.com/10gen/mongo/blob/d631952fa7ea7e889e2060eb137b483461c8c053/src/mongo/db/query/optimizer/utils/memo_utils.cpp#L303&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;pass the &apos;required&apos; projections unchanged&lt;/a&gt; to extract the child. This seems wrong because the EvaluationNode itself produces a binding, so we shouldn&apos;t be asking the child to also produce that binding.&lt;/p&gt;

&lt;p&gt;It should be more similar to how we handle GroupByNode, where we &lt;a href=&quot;https://github.com/10gen/mongo/blob/d631952fa7ea7e889e2060eb137b483461c8c053/src/mongo/db/query/optimizer/utils/memo_utils.cpp#L249-L261&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;modify the required projections&lt;/a&gt; before passing it to the child node.&lt;/p&gt;

&lt;p&gt;I believe this is what&apos;s causing recursive_ix_nav.js to fail with a tassert (undefined variable) during lowering.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2331678">SERVER-76827</key>
            <summary>[CQF] Plan extractor passes wrong projections to EvaluationNode child</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="13201">Fixed</resolution>
                                        <assignee username="david.percy@mongodb.com">David Percy</assignee>
                                    <reporter username="david.percy@mongodb.com">David Percy</reporter>
                        <labels>
                    </labels>
                <created>Thu, 4 May 2023 05:31:54 +0000</created>
                <updated>Sun, 29 Oct 2023 21:22:00 +0000</updated>
                            <resolved>Thu, 4 May 2023 22:21:38 +0000</resolved>
                                                    <fixVersion>7.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5402403" author="xgen-internal-githook" created="Thu, 4 May 2023 22:12:19 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;David Percy&apos;, &apos;email&apos;: &apos;david.percy@mongodb.com&apos;, &apos;username&apos;: &apos;dpercy&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-76827&quot; title=&quot;[CQF] Plan extractor passes wrong projections to EvaluationNode child&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-76827&quot;&gt;&lt;del&gt;SERVER-76827&lt;/del&gt;&lt;/a&gt; &lt;span class=&quot;error&quot;&gt;&amp;#91;CQF&amp;#93;&lt;/span&gt; Handle EvaluationProjection projection in plan extractor&lt;/p&gt;

&lt;p&gt;Don&apos;t require the child of an EvaluationNode to produce the projection&lt;br/&gt;
that the Evaluation binds: this can fail during SBENodeLowering.&lt;/p&gt;

&lt;p&gt;Also, use a cost hint to make recursive_ix_nav.js choose the expected&lt;br/&gt;
plan: equality prefixes for &apos;a&apos; and &apos;c&apos;; residual predicate on &apos;e&apos;; no&lt;br/&gt;
fetch.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b6b365ca5d8da099558eed947188c97085db4db5&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b6b365ca5d8da099558eed947188c97085db4db5&lt;/a&gt;&lt;/p&gt;</comment>
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