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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-83162] Optimize the simplifier for simple expressions</title>
                <link>https://jira.mongodb.org/browse/SERVER-83162</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We don&apos;t need to call Quine&#8211;McCluskey if the expression contains one term only. &lt;/p&gt;</description>
                <environment></environment>
        <key id="2498103">SERVER-83162</key>
            <summary>Optimize the simplifier for simple expressions</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="alexander.ignatyev@mongodb.com">Alexander Ignatyev</assignee>
                                    <reporter username="alexander.ignatyev@mongodb.com">Alexander Ignatyev</reporter>
                        <labels>
                    </labels>
                <created>Mon, 13 Nov 2023 12:24:43 +0000</created>
                <updated>Mon, 27 Nov 2023 11:28:52 +0000</updated>
                            <resolved>Mon, 27 Nov 2023 11:28:51 +0000</resolved>
                                                    <fixVersion>7.3.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5898731" author="xgen-internal-githook" created="Wed, 22 Nov 2023 14:47:55 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Alexander Ignatyev&apos;, &apos;email&apos;: &apos;alexander.ignatyev@mongodb.com&apos;, &apos;username&apos;: &apos;aligusnet&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83162&quot; title=&quot;Optimize the simplifier for simple expressions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83162&quot;&gt;&lt;del&gt;SERVER-83162&lt;/del&gt;&lt;/a&gt; remove unnecessary allocations in Bitset Tree converter&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;replace std::vector by absl::InlinedVector in Bitset Tree converter&lt;/li&gt;
	&lt;li&gt;do not allocate additional Bitset Tree node for the root&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e5010142460a9fb3b1d76ff1543a319027c179b2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e5010142460a9fb3b1d76ff1543a319027c179b2&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="5891994" author="xgen-internal-githook" created="Mon, 20 Nov 2023 12:35:24 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Alexander Ignatyev&apos;, &apos;email&apos;: &apos;alexander.ignatyev@mongodb.com&apos;, &apos;username&apos;: &apos;aligusnet&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83162&quot; title=&quot;Optimize the simplifier for simple expressions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83162&quot;&gt;&lt;del&gt;SERVER-83162&lt;/del&gt;&lt;/a&gt; Fix applyDeMorgan for nested NORs&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f2653d26c2ddd29bdcbc032a1cf81590bb4f2011&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f2653d26c2ddd29bdcbc032a1cf81590bb4f2011&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5879516" author="xgen-internal-githook" created="Tue, 14 Nov 2023 17:39:17 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Alexander Ignatyev&apos;, &apos;email&apos;: &apos;alexander.ignatyev@mongodb.com&apos;, &apos;username&apos;: &apos;aligusnet&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83162&quot; title=&quot;Optimize the simplifier for simple expressions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83162&quot;&gt;&lt;del&gt;SERVER-83162&lt;/del&gt;&lt;/a&gt; Speed up the simplifier for simple expressions&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;Do not run Quine-McCluskey when the expression is a single conjunctive or disjunctive term.&lt;/li&gt;
	&lt;li&gt;Do not simplify trivially simple expressions with one $expr.&lt;/li&gt;
	&lt;li&gt;Do not simplify internal $lookup expressions.&lt;/li&gt;
	&lt;li&gt;Add benchmarks of optimizing expressions of different sizes.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/55c5f9252317e337fe0905a8cbd68e5e92584cb0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/55c5f9252317e337fe0905a8cbd68e5e92584cb0&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
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