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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-80931] Cache QuerySettings hash, such that it does not have to be recomputed for plan cache lookup</title>
                <link>https://jira.mongodb.org/browse/SERVER-80931</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;As part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-79181&quot; title=&quot;Apply QuerySettings for find commands&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-79181&quot;&gt;&lt;del&gt;SERVER-79181&lt;/del&gt;&lt;/a&gt; we introduce QuerySettings into PlanCacheKey. PlanCacheKey has a planCacheKeyHash() method that is used to compute hash of the key.&lt;/p&gt;

&lt;p&gt;Now when computing the hash, hash of the QuerySettings is also computed and then later combined and returned.&lt;/p&gt;

&lt;p&gt;We could avoid hash computation of QuerySettings as part of the planCacheKeyHash() as its hash can be computed once as part of setQuerySettings, cached in QuerySettingsManager and then later returned as part of the QuerySettings lookup.&lt;/p&gt;

&lt;p&gt;This way QuerySettings hash value will be computed only once, which should improve the overall performance on the hot path.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2438549">SERVER-80931</key>
            <summary>Cache QuerySettings hash, such that it does not have to be recomputed for plan cache lookup</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-execution">Backlog - Query Execution</assignee>
                                    <reporter username="denis.grebennicov@mongodb.com">Denis Grebennicov</reporter>
                        <labels>
                            <label>M3</label>
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                <created>Mon, 11 Sep 2023 13:20:23 +0000</created>
                <updated>Tue, 12 Sep 2023 01:01:28 +0000</updated>
                                                                                                <votes>0</votes>
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