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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-68591] Temporarily switch to scanning the row store when encounter data that cannot be served from CSI</title>
                <link>https://jira.mongodb.org/browse/SERVER-68591</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;ul&gt;
	&lt;li&gt;Calls the&#160;&lt;tt&gt;next()&lt;/tt&gt;&#160;method for the row store cursor, as opposed to continuously seeking, in order to reduce time taken during COLUMN_SCAN&lt;/li&gt;
	&lt;li&gt;Processes records in batches. For each batch, we consider a sample size, and if that sample size reaches a certain amount of row store calls, we automatically defer to row store for the rest of the batch.&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="2107379">SERVER-68591</key>
            <summary>Temporarily switch to scanning the row store when encounter data that cannot be served from CSI</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="13201">Fixed</resolution>
                                        <assignee username="irina.yatsenko@mongodb.com">Irina Yatsenko</assignee>
                                    <reporter username="justin.zhang@mongodb.com">Justin Zhang</reporter>
                        <labels>
                            <label>pm2646-m4</label>
                    </labels>
                <created>Fri, 5 Aug 2022 15:05:46 +0000</created>
                <updated>Sun, 29 Oct 2023 21:34:52 +0000</updated>
                            <resolved>Tue, 27 Dec 2022 14:21:24 +0000</resolved>
                                                    <fixVersion>6.3.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5077450" author="xgen-internal-githook" created="Tue, 27 Dec 2022 01:22:28 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Irina Yatsenko&apos;, &apos;email&apos;: &apos;irina.yatsenko@mongodb.com&apos;, &apos;username&apos;: &apos;IrinaYatsenko&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-68591&quot; title=&quot;Temporarily switch to scanning the row store when encounter data that cannot be served from CSI&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68591&quot;&gt;&lt;del&gt;SERVER-68591&lt;/del&gt;&lt;/a&gt;: Switch to rowstore scan mode on reading data that cannot be served by CSI&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/33f73a7180873f5cbeb190f0dba6cd9f46390a62&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/33f73a7180873f5cbeb190f0dba6cd9f46390a62&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5074347" author="xgen-internal-githook" created="Fri, 23 Dec 2022 06:50:42 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;liubov.molchanova&apos;, &apos;email&apos;: &apos;liubov.molchanova@mongodb.com&apos;, &apos;username&apos;: &apos;liubov-molchanova&apos;}
&lt;p&gt;Message: Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-68591&quot; title=&quot;Temporarily switch to scanning the row store when encounter data that cannot be served from CSI&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68591&quot;&gt;&lt;del&gt;SERVER-68591&lt;/del&gt;&lt;/a&gt;: Switch to rowstore scan mode on reading data that cannot be served by CSI&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit 8583f66c0126e3d5ddf25c62a242b01c3d82bc19.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e91c301c45b8293c2c9e50b9bdfef186433c1a44&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e91c301c45b8293c2c9e50b9bdfef186433c1a44&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5074008" author="xgen-internal-githook" created="Thu, 22 Dec 2022 23:35:39 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Irina Yatsenko&apos;, &apos;email&apos;: &apos;irina.yatsenko@mongodb.com&apos;, &apos;username&apos;: &apos;IrinaYatsenko&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-68591&quot; title=&quot;Temporarily switch to scanning the row store when encounter data that cannot be served from CSI&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68591&quot;&gt;&lt;del&gt;SERVER-68591&lt;/del&gt;&lt;/a&gt;: Switch to rowstore scan mode on reading data that cannot be served by CSI&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8583f66c0126e3d5ddf25c62a242b01c3d82bc19&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8583f66c0126e3d5ddf25c62a242b01c3d82bc19&lt;/a&gt;&lt;/p&gt;</comment>
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                                                                <inwardlinks description="is depended on by">
                                        <issuelink>
            <issuekey id="2120534">SERVER-69105</issuekey>
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            <issuekey id="2064767">SERVER-67142</issuekey>
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