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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-83287] Ixscan plans on unique indexes needlessly call next() on storage cursor</title>
                <link>https://jira.mongodb.org/browse/SERVER-83287</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When we make an index scan SBE plan with point bounds, we end up calling next() in the storage layer more than once, even though a unique index guarantees that there can only be one key. We should consider optimizing this.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2501158">SERVER-83287</key>
            <summary>Ixscan plans on unique indexes needlessly call next() on storage cursor</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="zixuan.zhuang@mongodb.com">Zixuan Zhuang</assignee>
                                    <reporter username="ian.boros@mongodb.com">Ian Boros</reporter>
                        <labels>
                            <label>auto-reverted</label>
                            <label>query-perf-q4</label>
                    </labels>
                <created>Wed, 15 Nov 2023 19:49:37 +0000</created>
                <updated>Thu, 25 Jan 2024 21:04:55 +0000</updated>
                            <resolved>Wed, 17 Jan 2024 22:52:21 +0000</resolved>
                                                    <fixVersion>7.3.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="6042837" author="xgen-internal-githook" created="Thu, 25 Jan 2024 21:04:55 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Zixuan&apos;, &apos;email&apos;: &apos;leozzx@users.noreply.github.com&apos;, &apos;username&apos;: &apos;leozzx&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-85727&quot; title=&quot;[v7.3] Revert &amp;quot;Ixscan plans on unique indexes needlessly call next() on storage cursor&amp;quot; in 7.3&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-85727&quot;&gt;&lt;del&gt;SERVER-85727&lt;/del&gt;&lt;/a&gt; Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83287&quot; title=&quot;Ixscan plans on unique indexes needlessly call next() on storage cursor&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83287&quot;&gt;&lt;del&gt;SERVER-83287&lt;/del&gt;&lt;/a&gt; Avoid unnecessary next() call on unique indexes &#8230; (#18388)&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: eacfd09bc2bca2abc0206dba154c23029fe08558&lt;br/&gt;
Branch: v7.3&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f146aeefe0010b422e68c12988d2917cbc95e49f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f146aeefe0010b422e68c12988d2917cbc95e49f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="6019278" author="xgen-internal-githook" created="Wed, 17 Jan 2024 20:58:08 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Zixuan&apos;, &apos;email&apos;: &apos;leozzx@users.noreply.github.com&apos;, &apos;username&apos;: &apos;leozzx&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83287&quot; title=&quot;Ixscan plans on unique indexes needlessly call next() on storage cursor&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83287&quot;&gt;&lt;del&gt;SERVER-83287&lt;/del&gt;&lt;/a&gt; Avoid unnecessary next() call on unique indexes for SBE (#18084)&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 7fdf7fe84fb9b8cc8504b63b2a4ae0836c9d320f&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e9579d48a1c71c2884f66023e53c5207324d358d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e9579d48a1c71c2884f66023e53c5207324d358d&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="6002713" author="xgen-internal-githook" created="Thu, 11 Jan 2024 02:39:42 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;auto-revert-processor&apos;, &apos;email&apos;: &apos;dev-prod-dag@mongodb.com&apos;, &apos;username&apos;: &apos;&apos;}
&lt;p&gt;Message: Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83287&quot; title=&quot;Ixscan plans on unique indexes needlessly call next() on storage cursor&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83287&quot;&gt;&lt;del&gt;SERVER-83287&lt;/del&gt;&lt;/a&gt; Avoid unnecessary next() call on unique indexes for SBE (#17814)&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit 88cd25c553792dd4cbd07c139a616eff7fcdf90c.&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 2bcfeb7bb5ced13bee74d6a064b2c2dafb540809&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/678eb0dcd2a0e037d172971054f1f63b8cb31bd2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/678eb0dcd2a0e037d172971054f1f63b8cb31bd2&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="6001825" author="xgen-internal-githook" created="Wed, 10 Jan 2024 20:27:06 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Zixuan&apos;, &apos;email&apos;: &apos;leozzx@users.noreply.github.com&apos;, &apos;username&apos;: &apos;leozzx&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83287&quot; title=&quot;Ixscan plans on unique indexes needlessly call next() on storage cursor&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83287&quot;&gt;&lt;del&gt;SERVER-83287&lt;/del&gt;&lt;/a&gt; Avoid unnecessary next() call on unique indexes for SBE (#17814)&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 88cd25c553792dd4cbd07c139a616eff7fcdf90c&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d3c6e9f5862c53a90b622ddb19eecd6fc001e12f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d3c6e9f5862c53a90b622ddb19eecd6fc001e12f&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2553543">SERVER-85577</issuekey>
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