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    <title>MongoDB Jira</title>
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    <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>[DRIVERS-2396] Add Dictionary support to zstd library</title>
                <link>https://jira.mongodb.org/browse/DRIVERS-2396</link>
                <project id="10980" key="DRIVERS">Drivers</project>
                    <description>&lt;div class=&quot;panel&quot; style=&quot;background-color: #fafbfc;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelContent&quot; style=&quot;background-color: #fafbfc;&quot;&gt;
&lt;h3&gt;&lt;a name=&quot;Summary&quot;&gt;&lt;/a&gt;&lt;b&gt;Summary&lt;/b&gt;&lt;/h3&gt;

&lt;p&gt;&lt;em&gt;Add Dictionary support to the zstd library&lt;/em&gt;&lt;/p&gt;
&lt;h3&gt;&lt;a name=&quot;Motivation&quot;&gt;&lt;/a&gt;&lt;b&gt;Motivation&lt;/b&gt;&lt;/h3&gt;
&lt;h4&gt;&lt;a name=&quot;Whoistheaffectedenduser%3F&quot;&gt;&lt;/a&gt;Who is the affected end user?&lt;/h4&gt;

&lt;p&gt;&lt;em&gt;Public Feature.&lt;/em&gt;&lt;/p&gt;

&lt;p&gt;Customer Request:&lt;/p&gt;

&lt;p&gt;Please add passing on a pre-trained dictionary as an (optional) argument.&lt;/p&gt;

&lt;p&gt;Training data on known structures etc. improves compression rate my a magnitude of 2-3, especially for small data.&lt;/p&gt;

&lt;p&gt;Since this is one of the main selling points of zstd, it&apos;s a crucial feature to have.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb-js/zstd&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb-js/zstd&lt;/a&gt;&lt;/p&gt;
&lt;h4&gt;&lt;a name=&quot;Howdoesthisaffecttheenduser%3F&quot;&gt;&lt;/a&gt;How does this affect the end user?&lt;/h4&gt;

&lt;p&gt;&lt;em&gt;New Feature&lt;/em&gt;&lt;/p&gt;
&lt;h4&gt;&lt;a name=&quot;Howlikelyisitthatthisproblemorusecasewilloccur%3F&quot;&gt;&lt;/a&gt;How likely is it that this problem or use case will occur?&lt;/h4&gt;

&lt;p&gt;&lt;em&gt;N/A&lt;/em&gt;&lt;/p&gt;
&lt;h4&gt;&lt;a name=&quot;Isthisticketrequiredbyadownstreamteam%3F&quot;&gt;&lt;/a&gt;Is this ticket required by a downstream team?&lt;/h4&gt;

&lt;p&gt;&lt;em&gt;No&lt;/em&gt;&lt;/p&gt;
&lt;h4&gt;&lt;a name=&quot;Isthisticketonlyfortests%3F&quot;&gt;&lt;/a&gt;Is this ticket only for tests?&lt;/h4&gt;

&lt;p&gt;&lt;em&gt;No&lt;/em&gt;&lt;/p&gt;
&lt;/div&gt;&lt;/div&gt;</description>
                <environment></environment>
        <key id="2097231">DRIVERS-2396</key>
            <summary>Add Dictionary support to zstd library</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</type>
                                            <priority id="10300" iconUrl="https://jira.mongodb.org/images/icons/priorities/medium.svg">Unknown</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="martin.bajana@mongodb.com">Martin Bajana</reporter>
                        <labels>
                    </labels>
                <created>Fri, 22 Jul 2022 15:59:57 +0000</created>
                <updated>Tue, 27 Sep 2022 18:18:02 +0000</updated>
                            <resolved>Tue, 27 Sep 2022 18:16:30 +0000</resolved>
                                                        <component>Wire Protocol</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                    <issuelinks>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="2086318">NODE-4399</issuekey>
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