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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-64766] Column index cell value encoder</title>
                <link>https://jira.mongodb.org/browse/SERVER-64766</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This ticket will cover encoding the entire cell (the value of each key-value pair in the index) into a single flat buffer.&lt;/p&gt;

&lt;p&gt;In particular, it will cover:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Flag bytes&lt;/li&gt;
	&lt;li&gt;ArrayInfo size&lt;/li&gt;
	&lt;li&gt;Encode each BSONElement -&amp;gt; column index format&lt;/li&gt;
	&lt;li&gt;Copy the pre-encoded arrayInfo to the end of the cell&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;It should take as input the &lt;tt&gt;UnencodedCellView&lt;/tt&gt; type from &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-65192&quot; title=&quot;Implement key generation for column store indexes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-65192&quot;&gt;&lt;del&gt;SERVER-65192&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2005979">SERVER-64766</key>
            <summary>Column index cell value encoder</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="justin.seyster@mongodb.com">Justin Seyster</assignee>
                                    <reporter username="ian.boros@mongodb.com">Ian Boros</reporter>
                        <labels>
                    </labels>
                <created>Mon, 21 Mar 2022 21:08:27 +0000</created>
                <updated>Sun, 29 Oct 2023 21:40:46 +0000</updated>
                            <resolved>Wed, 1 Jun 2022 15:34:37 +0000</resolved>
                                                    <fixVersion>6.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4517933" author="xgen-internal-githook" created="Sat, 30 Apr 2022 04:04:07 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Justin Seyster&apos;, &apos;email&apos;: &apos;justin.seyster@mongodb.com&apos;, &apos;username&apos;: &apos;jseyster&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-64766&quot; title=&quot;Column index cell value encoder&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-64766&quot;&gt;&lt;del&gt;SERVER-64766&lt;/del&gt;&lt;/a&gt; Translation from UnencodedCellView to columnar index format&lt;/p&gt;

&lt;p&gt;Co-authored-by: Mathias Stearn &amp;lt;redbeard0531@gmail.com&amp;gt;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/1ba3d6e0c71c80e08d0f3e26a1b46c621c3a9f1b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/1ba3d6e0c71c80e08d0f3e26a1b46c621c3a9f1b&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4475984" author="redbeard0531" created="Tue, 12 Apr 2022 07:22:59 +0000"  >&lt;p&gt;I&apos;m going to expand the scope of this ticket slightly to cover not just the value encoder, but the entire cell encoding process. I think the value encoder will be most of the work anyway, with just a little extra code to handle flag bytes and copying the (already encoded) arrayInfo.&lt;/p&gt;</comment>
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