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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-8768] implement support for interleaving btree and non btree cursors in query optimizer cursor selection code</title>
                <link>https://jira.mongodb.org/browse/SERVER-8768</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The query optimizer implementation for speculatively evaluating cursors produced by multiple query plans currently only supports btree and unindexed cursors.  Certain geo cursors are not supported, and as a result all non btree cursors are excluded from speculative evaluation.  This means that non btree cursors are only used to resolve an unhinted query when no btree cursors are helpful candidates for the query, as described in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4531&quot; title=&quot;new process for selecting a geo index when performing exact lookup queries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4531&quot;&gt;&lt;del&gt;SERVER-4531&lt;/del&gt;&lt;/a&gt;.  A hint can still be used to force usage of a non btree index in such cases.&lt;/p&gt;

&lt;p&gt;Instead it may be desirable for the query optimizer to support speculative evaluation of btree and non btree cursors simultaneously.&lt;/p&gt;</description>
                <environment></environment>
        <key id="66705">SERVER-8768</key>
            <summary>implement support for interleaving btree and non btree cursors in query optimizer cursor selection code</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="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="3">Duplicate</resolution>
                                        <assignee username="hari.khalsa@10gen.com">hari.khalsa@10gen.com</assignee>
                                    <reporter username="aaron">Aaron Staple</reporter>
                        <labels>
                    </labels>
                <created>Wed, 27 Feb 2013 20:05:35 +0000</created>
                <updated>Fri, 7 Mar 2014 01:10:09 +0000</updated>
                            <resolved>Mon, 23 Sep 2013 22:08:37 +0000</resolved>
                                                                    <component>Geo</component>
                    <component>Querying</component>
                                        <votes>1</votes>
                                    <watches>3</watches>
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