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    <title>MongoDB Jira</title>
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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-592] Linq Sum Operator throws exception</title>
                <link>https://jira.mongodb.org/browse/CSHARP-592</link>
                <project id="10041" key="CSHARP">C# Driver</project>
                    <description>&lt;p&gt;my C# driver version is 1.6.0.4624&lt;br/&gt;
I was trying use Sum. Here is my code&lt;br/&gt;
  var q = coll.AsQueryable().Where(rw =&amp;gt; rw.myDate == dt).Sum(t=&amp;gt;t.Sales);&lt;/p&gt;

&lt;p&gt;I get following exception&lt;br/&gt;
System.NotSupportedException: The Sum query operator is not supported.&lt;/p&gt;</description>
                <environment>Windows  7 ,  .NET 4.0</environment>
        <key id="52438">CSHARP-592</key>
            <summary>Linq Sum Operator throws exception</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="-1">Unassigned</assignee>
                                    <reporter username="senthil">senthil</reporter>
                        <labels>
                    </labels>
                <created>Fri, 5 Oct 2012 18:20:30 +0000</created>
                <updated>Thu, 20 Mar 2014 14:35:43 +0000</updated>
                            <resolved>Thu, 11 Oct 2012 14:26:23 +0000</resolved>
                                    <version>1.6</version>
                                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="173740" author="craiggwilson" created="Thu, 11 Oct 2012 14:26:23 +0000"  >&lt;p&gt;Created new feature ticket, &lt;a href=&quot;https://jira.mongodb.org/browse/CSHARP-601&quot; title=&quot;Linq to Aggregation Framework&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CSHARP-601&quot;&gt;&lt;del&gt;CSHARP-601&lt;/del&gt;&lt;/a&gt;, for linq to agg framework.&lt;/p&gt;</comment>
                            <comment id="171998" author="rstam" created="Fri, 5 Oct 2012 19:17:16 +0000"  >&lt;p&gt;Version 1.6 doesn&apos;t support any aggregation operators.&lt;/p&gt;

&lt;p&gt;We are planning to add support for LINQ aggregation operators by mapping them to MongoDB aggregation framework pipelines, but we don&apos;t know what version of the driver that support will appear in.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10010">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="52910">CSHARP-601</issuekey>
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