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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-16437] Simple index scans should work like CountScan</title>
                <link>https://jira.mongodb.org/browse/SERVER-16437</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This means creating a begin and end cursor and using pointsAt() rather than comparing keys. Could do even better by caching the end RecordId and only calling pointsAt() if the RecordIds match.&lt;/p&gt;</description>
                <environment></environment>
        <key id="172969">SERVER-16437</key>
            <summary>Simple index scans should work like CountScan</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="9">Done</resolution>
                                        <assignee username="david.storch@mongodb.com">David Storch</assignee>
                                    <reporter username="mathias@mongodb.com">Mathias Stearn</reporter>
                        <labels>
                    </labels>
                <created>Fri, 5 Dec 2014 17:53:42 +0000</created>
                <updated>Fri, 23 Jan 2015 23:35:32 +0000</updated>
                            <resolved>Fri, 16 Jan 2015 15:55:16 +0000</resolved>
                                                    <fixVersion>3.0.0-rc6</fixVersion>
                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="806432" author="xgen-internal-githook" created="Fri, 16 Jan 2015 15:38:07 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dstorch&apos;, u&apos;name&apos;: u&apos;David Storch&apos;, u&apos;email&apos;: u&apos;david.storch@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16437&quot; title=&quot;Simple index scans should work like CountScan&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16437&quot;&gt;&lt;del&gt;SERVER-16437&lt;/del&gt;&lt;/a&gt; fix bug in IndexScan::restoreState() for the optimized end checker&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/7adff440ba333fb0ffa554f2ed69d8f2906a00d2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/7adff440ba333fb0ffa554f2ed69d8f2906a00d2&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="806430" author="xgen-internal-githook" created="Fri, 16 Jan 2015 15:38:05 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dstorch&apos;, u&apos;name&apos;: u&apos;David Storch&apos;, u&apos;email&apos;: u&apos;david.storch@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16437&quot; title=&quot;Simple index scans should work like CountScan&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16437&quot;&gt;&lt;del&gt;SERVER-16437&lt;/del&gt;&lt;/a&gt; Revert &quot;Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16437&quot; title=&quot;Simple index scans should work like CountScan&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16437&quot;&gt;&lt;del&gt;SERVER-16437&lt;/del&gt;&lt;/a&gt; IndexScan optimize end checker for single interval scans&quot;&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit eedfab2f783bcd1ee111cd36ece5ebfc0a5abf99.&lt;/p&gt;

&lt;p&gt;Conflicts:&lt;br/&gt;
	src/mongo/db/exec/index_scan.h&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/fadd8b58d8eb3500da77639d138789646f4cca96&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/fadd8b58d8eb3500da77639d138789646f4cca96&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="792569" author="xgen-internal-githook" created="Mon, 22 Dec 2014 20:59:46 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jrassi&apos;, u&apos;name&apos;: u&apos;Jason Rassi&apos;, u&apos;email&apos;: u&apos;rassi@10gen.com&apos;}
&lt;p&gt;Message: Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16437&quot; title=&quot;Simple index scans should work like CountScan&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16437&quot;&gt;&lt;del&gt;SERVER-16437&lt;/del&gt;&lt;/a&gt; IndexScan optimize end checker for single interval scans&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit f984b532331e46298d52d4c786cb359fa208f3d9.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/eedfab2f783bcd1ee111cd36ece5ebfc0a5abf99&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/eedfab2f783bcd1ee111cd36ece5ebfc0a5abf99&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="792568" author="rassi@10gen.com" created="Mon, 22 Dec 2014 20:59:13 +0000"  >&lt;p&gt;f984b532 seems to have introduced a regression into the IndexScan stage.  See &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16616&quot; title=&quot;&amp;quot;chunks out of order&amp;quot; error during md5sum command &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16616&quot;&gt;&lt;del&gt;SERVER-16616&lt;/del&gt;&lt;/a&gt; for details.  I&apos;m reverting f984b532 and re-opening this ticket for 2.8.0-rc5.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=redbeard0531&quot; class=&quot;user-hover&quot; rel=&quot;redbeard0531&quot;&gt;redbeard0531&lt;/a&gt;: please debug the test failure attached at &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16616&quot; title=&quot;&amp;quot;chunks out of order&amp;quot; error during md5sum command &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16616&quot;&gt;&lt;del&gt;SERVER-16616&lt;/del&gt;&lt;/a&gt; if you have a chance on Monday or Tuesday.  If you don&apos;t have time, hand this off to &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=david.storch&quot; class=&quot;user-hover&quot; rel=&quot;david.storch&quot;&gt;david.storch&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="787504" author="xgen-internal-githook" created="Tue, 16 Dec 2014 20:19:37 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jrassi&apos;, u&apos;name&apos;: u&apos;Jason Rassi&apos;, u&apos;email&apos;: u&apos;rassi@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16437&quot; title=&quot;Simple index scans should work like CountScan&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16437&quot;&gt;&lt;del&gt;SERVER-16437&lt;/del&gt;&lt;/a&gt; IndexScan optimize end checker for single interval scans&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f984b532331e46298d52d4c786cb359fa208f3d9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f984b532331e46298d52d4c786cb359fa208f3d9&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="175595">SERVER-16616</issuekey>
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            <issuekey id="180046">SERVER-16982</issuekey>
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