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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-32524] Add a parameter to disable query system optimizations for testing</title>
                <link>https://jira.mongodb.org/browse/SERVER-32524</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The query system performs a number of distinct optimization steps in order to choose an efficient plan for a query:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Optimizing any match expressions via MatchExpression::optimize().&lt;/li&gt;
	&lt;li&gt;Optimizing any expressions via Expression::optimize().&lt;/li&gt;
	&lt;li&gt;Optimizing an aggregation pipeline via Pipeline::optimize().&lt;/li&gt;
	&lt;li&gt;Generating indexed plans for a query.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;All such optimization steps should improve the run time of the query without actually impacting its behavior. In order to test that optimizations are correct, we should introduce an internal configuration parameter that disables them. This will allow us to build testing infrastructure that compares a server configured with optimizations disabled to a server with optimizations enabled.&lt;/p&gt;</description>
                <environment></environment>
        <key id="478205">SERVER-32524</key>
            <summary>Add a parameter to disable query system optimizations for testing</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="david.storch@mongodb.com">David Storch</reporter>
                        <labels>
                    </labels>
                <created>Wed, 3 Jan 2018 13:00:42 +0000</created>
                <updated>Tue, 6 Dec 2022 03:42:46 +0000</updated>
                                                                            <component>Aggregation Framework</component>
                    <component>Querying</component>
                    <component>Testing Infrastructure</component>
                                        <votes>0</votes>
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