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    <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-67498] Generic Boolean expression CE</title>
                <link>https://jira.mongodb.org/browse/SERVER-67498</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;TODO: The description needs to be updated based on &lt;a href=&quot;https://docs.google.com/presentation/d/1FHMN5I-Ut4s6GWzZvJnLL0f7RgJ6q95Uvs1BKphKGfc/edit&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this presentation&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;Implement a generic transport-based CE class that handles all logical nodes.&lt;br/&gt;
This class also handles in a generic way:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Estimation of conjunctions/disjunctions inside SargableNode.&lt;/li&gt;
	&lt;li&gt;Estimation of SARGable elemMatch Filter nodes.&lt;/li&gt;
	&lt;li&gt;In the future it will handle complex FilterNodes.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Each transport method for each node type will take into account whether a specific estimation method is enabled, and call the corresponding estimation logic for each atomic interval or predicate. In the case of histogram-based estimation, the method will also check for and fetch the histogram for the filtered path, and will call histogram-based estimation.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2075906">SERVER-67498</key>
            <summary>Generic Boolean expression CE</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="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-query-optimization">Backlog - Query Optimization</assignee>
                                    <reporter username="timour.katchaounov@mongodb.com">Timour Katchaounov</reporter>
                        <labels>
                            <label>bonsai-ce</label>
                    </labels>
                <created>Fri, 24 Jun 2022 08:00:04 +0000</created>
                <updated>Mon, 1 May 2023 16:05:52 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="4900644" author="JIRAUSER1258247" created="Thu, 13 Oct 2022 12:56:03 +0000"  >&lt;p&gt;After discussing with the optimizer team, and &lt;a href=&quot;https://docs.google.com/presentation/d/1FHMN5I-Ut4s6GWzZvJnLL0f7RgJ6q95Uvs1BKphKGfc/edit?usp=sharing&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this presentation&lt;/a&gt; this task will be narrowed only to implement a generic estimator of Boolean expressions that processes an in/out tree of estimates that is parallel to the Boolean expression tree.&lt;/p&gt;</comment>
                            <comment id="4861491" author="JIRAUSER1258247" created="Wed, 28 Sep 2022 12:59:35 +0000"  >&lt;p&gt;Apparently there is a need for more discussions to agree on the high-level approach.&lt;/p&gt;

&lt;p&gt;I&apos;ll pause work on this until we have those dicussions.&lt;/p&gt;</comment>
                            <comment id="4861490" author="JIRAUSER1258247" created="Wed, 28 Sep 2022 12:58:51 +0000"  >&lt;p&gt;This is a document that discusses alternative approaches: &lt;a href=&quot;https://docs.google.com/document/d/14NsfjN2A4Pu7GQ5f2KRUCqWgY2IV-HOfce6jAdoHYck/edit&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.google.com/document/d/14NsfjN2A4Pu7GQ5f2KRUCqWgY2IV-HOfce6jAdoHYck/edit&lt;/a&gt;&lt;/p&gt;</comment>
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