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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>[CSHARP-4701] LINQ3 produces ExpressionNotSupported error on ContainsKey for DictionaryRepresentation.ArrayOfDocuments</title>
                <link>https://jira.mongodb.org/browse/CSHARP-4701</link>
                <project id="10041" key="CSHARP">C# Driver</project>
                    <description>&lt;h4&gt;&lt;a name=&quot;Summary&quot;&gt;&lt;/a&gt;Summary&lt;/h4&gt;

&lt;p&gt;LINQ3 queries using ContainsKey on a Dictionary that is stored as DictionaryRepresentation.ArrayOfDocuments throws a ExpressionNotSupported exception.&#160; ContainsKey support was added to dictionaries stored as DictionaryRepresentation.Document in &lt;a href=&quot;https://jira.mongodb.org/browse/CSHARP-4557&quot; title=&quot;LINQ3 produces ExpressionNotSupported error on ContainsKey&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CSHARP-4557&quot;&gt;&lt;del&gt;CSHARP-4557&lt;/del&gt;&lt;/a&gt; and &lt;a href=&quot;https://github.com/mongodb/mongo-csharp-driver/commit/4284dde38ce9f5dc7b9769d97f2d0f17633e129d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this commit&lt;/a&gt; Support needed for the ArrayOfDocuments representation as well.&lt;/p&gt;
&lt;h4&gt;&lt;a name=&quot;HowtoReproduce&quot;&gt;&lt;/a&gt;How to Reproduce&lt;/h4&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;public&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;class&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; Model {&lt;/span&gt;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;  [BsonDictionaryOptions(DictionaryRepresentation.ArrayOfDocuments)]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&#160; &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;public&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; virtual Dictionary&amp;lt;string, string&amp;gt; Foo { get; set; }&lt;/span&gt;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;}&lt;/span&gt;&lt;/pre&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&amp;nbsp;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;collection.AsQueryable()&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;  .Where(x =&amp;gt; x.Foo.ContainsKey(&lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;x&quot;&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;)).ToList();&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;
&lt;h4&gt;&lt;a name=&quot;AdditionalBackground&quot;&gt;&lt;/a&gt;Additional Background&lt;/h4&gt;

&lt;p&gt;The LINQ2 code for this I found &lt;a href=&quot;https://github.com/mongodb/mongo-csharp-driver/blob/v2.18.x/src/MongoDB.Driver/Linq/Linq2Implementation/Translators/PredicateTranslator.cs#L599&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;&#160;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2381517">CSHARP-4701</key>
            <summary>LINQ3 produces ExpressionNotSupported error on ContainsKey for DictionaryRepresentation.ArrayOfDocuments</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="3">Duplicate</resolution>
                                        <assignee username="robert@mongodb.com">Robert Stam</assignee>
                                    <reporter username="jgonyo@snagajob.com">John Gonyo</reporter>
                        <labels>
                            <label>LINQ3</label>
                    </labels>
                <created>Fri, 30 Jun 2023 15:50:21 +0000</created>
                <updated>Mon, 3 Jul 2023 22:09:58 +0000</updated>
                            <resolved>Mon, 3 Jul 2023 22:09:58 +0000</resolved>
                                    <version>2.20.0</version>
                                                    <component>LINQ3</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5541573" author="rstam" created="Mon, 3 Jul 2023 22:09:44 +0000"  >&lt;p&gt;Thank you for reporting this. We are aware that LINQ queries are currently only supported when the dictionary is represented in the database using the default `Document` representation.&lt;/p&gt;

&lt;p&gt;We would like to expand LINQ support for the other dictionary representations as well, at least to the extent that is possible in those representations.&lt;/p&gt;

&lt;p&gt;Please follow the existing &lt;a href=&quot;https://jira.mongodb.org/browse/CSHARP-4443&quot; title=&quot;Support LINQ3 queries against all 3 possible representations of Dictionaries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CSHARP-4443&quot;&gt;CSHARP-4443&lt;/a&gt; ticket for that.&lt;/p&gt;</comment>
                            <comment id="5537157" author="dbeng-pm-bot" created="Fri, 30 Jun 2023 15:50:24 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=jgonyo%40snagajob.com&quot; class=&quot;user-hover&quot; rel=&quot;jgonyo@snagajob.com&quot;&gt;jgonyo@snagajob.com&lt;/a&gt;, thank you for reporting this issue! The team will look into it and get back to you soon. &lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10010">
                    <name>Duplicate</name>
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                                        <issuelink>
            <issuekey id="2205227">CSHARP-4443</issuekey>
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