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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>
    </build-info>


<item>
            <title>[CSHARP-4130] ChangeStreamOperationTypeSerializer doesn&apos;t handle dropDatabase</title>
                <link>https://jira.mongodb.org/browse/CSHARP-4130</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;When monitoring a change stream, an event of &lt;b&gt;dropDatabase&lt;/b&gt; is not handled by the serializer and causes an exception if you attempt to access &lt;b&gt;ChangeStreamDocument.OperationType&lt;/b&gt;.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&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;
		&lt;tbody &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-top: 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;System.FormatException: Invalid ChangeStreamOperationType: &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;dropDatabase&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;.&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;   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; at MongoDB.Driver.ChangeStreamOperationTypeSerializer.Deserialize(BsonDeserializationContext context, BsonDeserializationArgs args)&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;   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; at MongoDB.Bson.Serialization.Serializers.SerializerBase`&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;1&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;.MongoDB.Bson.Serialization.IBsonSerializer.Deserialize(BsonDeserializationContext context, BsonDeserializationArgs args)&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;   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; at MongoDB.Bson.Serialization.IBsonSerializerExtensions.Deserialize(IBsonSerializer serializer, BsonDeserializationContext context)&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;   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; at MongoDB.Bson.Serialization.BsonSerializationInfo.DeserializeValue(BsonValue value)&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;   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; at MongoDB.Bson.Serialization.BsonDocumentBackedClass.GetValue[T](String memberName, T defaultValue)&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; at MongoDB.Driver.ChangeStreamDocument`&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;1&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;.get_OperationType()&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;
&lt;p&gt;&#160;&lt;/p&gt;
&lt;h4&gt;&lt;a name=&quot;Pleaseprovidetheversionofthedriver.Ifapplicable%2CpleaseprovidetheMongoDBserverversionandtopology%28standalone%2Creplicaset%2Corshardedcluster%29.&quot;&gt;&lt;/a&gt;Please provide the version of the driver. If applicable, please provide the MongoDB server version and topology (standalone, replica set, or sharded cluster).&lt;/h4&gt;

&lt;p&gt;C# driver version is 2.15.0. Server version is&#160;5.0.6 on a MongoDB Atlas shared cluster.&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;Connect to a cluster. Initiate a watch against the IMongoClient object. Drop a database in the cluster.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2018096">CSHARP-4130</key>
            <summary>ChangeStreamOperationTypeSerializer doesn&apos;t handle dropDatabase</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="boris.dogadov@mongodb.com">Boris Dogadov</assignee>
                                    <reporter username="eric_rosenquist@cysiv.com">Eric Rosenquist</reporter>
                        <labels>
                    </labels>
                <created>Wed, 6 Apr 2022 13:47:39 +0000</created>
                <updated>Mon, 11 Apr 2022 21:40:04 +0000</updated>
                            <resolved>Mon, 11 Apr 2022 21:40:04 +0000</resolved>
                                    <version>2.15.0</version>
                                                    <component>Serialization</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4474887" author="JIRAUSER1257742" created="Mon, 11 Apr 2022 21:39:40 +0000"  >&lt;p&gt;Thanks for reporting this &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=eric_rosenquist%40cysiv.com&quot; class=&quot;user-hover&quot; rel=&quot;eric_rosenquist@cysiv.com&quot;&gt;eric_rosenquist@cysiv.com&lt;/a&gt;&#160;&lt;br/&gt;
This issue is fixed in &lt;a href=&quot;https://jira.mongodb.org/browse&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;CSHARP-4036&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4461104" author="JIRAUSER1260845" created="Wed, 6 Apr 2022 14:17:02 +0000"  >&lt;p&gt;Since working around that issue I&apos;ve noticed some related serialization problems - attempting to access&#160;&lt;b&gt;CollectionNamespace&lt;/b&gt; will also throw an exception since there&apos;s no collection name for a &lt;b&gt;dropDatabase&lt;/b&gt; change. I guess that&apos;s not surprising, but there needs to be a way to get the name of the dropped database without having to use Bson calls.&lt;/p&gt;

&lt;p&gt;The exception is:&#160;System.ArgumentException: Collection names must be non-empty and not contain the null character. (Parameter &apos;collectionName&apos;)&lt;/p&gt;</comment>
                            <comment id="4461068" author="dmitry.lukyanov" created="Wed, 6 Apr 2022 14:08:53 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=eric_rosenquist%40cysiv.com&quot; class=&quot;user-hover&quot; rel=&quot;eric_rosenquist@cysiv.com&quot;&gt;eric_rosenquist@cysiv.com&lt;/a&gt; thanks for your report. You&apos;re right, this change stream operation type is missed. We will triage this work and come back to you.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="1976081">CSHARP-4036</issuekey>
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