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    <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-1958] LINQ Any() invokes document deserialization</title>
                <link>https://jira.mongodb.org/browse/CSHARP-1958</link>
                <project id="10041" key="CSHARP">C# Driver</project>
                    <description>&lt;p&gt;The desired result of using Any() Linq method is to get boolean value. In case when document can&apos;t be deserialized now I get exception instead of getting proper result.&lt;br/&gt;
As far as I understood from&lt;/p&gt;
&lt;p/&gt;
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&lt;p&gt;the query is translated to fetching at least one document.&lt;/p&gt;</description>
                <environment></environment>
        <key id="371871">CSHARP-1958</key>
            <summary>LINQ Any() invokes document deserialization</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="robert@mongodb.com">Robert Stam</assignee>
                                    <reporter username="ahydrax">Viktor Svyatokha</reporter>
                        <labels>
                    </labels>
                <created>Fri, 7 Apr 2017 08:39:39 +0000</created>
                <updated>Wed, 1 Nov 2023 17:22:41 +0000</updated>
                            <resolved>Wed, 1 Nov 2023 17:22:41 +0000</resolved>
                                    <version>2.4.3</version>
                                    <fixVersion>2.19.0</fixVersion>
                                    <component>Linq</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="5846882" author="rstam" created="Wed, 1 Nov 2023 17:22:41 +0000"  >&lt;p&gt;This issue does not exist in LINQ3.&lt;/p&gt;</comment>
                            <comment id="1566503" author="ahydrax" created="Mon, 8 May 2017 01:07:38 +0000"  >&lt;p&gt;Proposed PR: &lt;a href=&quot;https://github.com/mongodb/mongo-csharp-driver/pull/278&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-csharp-driver/pull/278&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1545465" author="rstam" created="Mon, 10 Apr 2017 20:27:45 +0000"  >&lt;p&gt;You are correct that the current implementation of Any is to attempt to read 1 document from the server and see whether it gets one back or not.&lt;/p&gt;

&lt;p&gt;This does indeed throw an exception if the document that comes back from the server happens to be bad in some way that causes deserialization to thrown an exception.&lt;/p&gt;

&lt;p&gt;This could be implemented using some other query that did not involve client side deserialization of the document.&lt;/p&gt;

&lt;p&gt;You are welcome to submit a pull request if you come up with an alternative implementation.&lt;/p&gt;</comment>
                            <comment id="1543383" author="ahydrax" created="Fri, 7 Apr 2017 08:41:29 +0000"  >&lt;p&gt;I can start fixing this bug but I need an approval from driver team&lt;/p&gt;</comment>
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