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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[CSHARP-311] New serialization format for Dictionary&lt;TKey, TValue&gt; as array of nested documents</title>
                <link>https://jira.mongodb.org/browse/CSHARP-311</link>
                <project id="10041" key="CSHARP">C# Driver</project>
                    <description>&lt;p&gt;Currently Dictionary&amp;lt;TKey, TValue&amp;gt; is serialized as one of two forms:&lt;/p&gt;

&lt;p&gt;1. A document where the element names are the dictionary key values (only possible when TKey is string)&lt;br/&gt;
2. An array of nested two-element arrays containing key value pairs&lt;/p&gt;

&lt;p&gt;The second representation is perfectly adequate for serialization/deserialization, but it is difficult to query against. To better support querying the following alternate representation is proposed:&lt;/p&gt;

&lt;p&gt;{ &apos;dictionary&apos; : [ &lt;/p&gt;
{ &apos;k&apos; : key1, &apos;v&apos; : value1 }
&lt;p&gt;, ...] }&lt;/p&gt;

&lt;p&gt;This representation uses a nested document for the key/value pairs instead of a nested two-element array. This facilitates querying against either the keys or the values.&lt;/p&gt;

&lt;p&gt;There should also be a serialization option to allow the developer to choose the second representation even when TKey is string.&lt;/p&gt;</description>
                <environment></environment>
        <key id="21629">CSHARP-311</key>
            <summary>New serialization format for Dictionary&lt;TKey, TValue&gt; as array of nested documents</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</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="robert@mongodb.com">Robert Stam</assignee>
                                    <reporter username="robert@mongodb.com">Robert Stam</reporter>
                        <labels>
                    </labels>
                <created>Mon, 29 Aug 2011 16:43:43 +0000</created>
                <updated>Thu, 2 Apr 2015 18:27:48 +0000</updated>
                            <resolved>Thu, 6 Oct 2011 14:25:10 +0000</resolved>
                                    <version>1.1</version>
                                    <fixVersion>1.3</fixVersion>
                                                        <votes>1</votes>
                                    <watches>1</watches>
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