The id functions as an opaque token for use when resuming an interrupted change stream.id的作用是在恢复中断的变更流时使用的不透明令牌。
Optional clusterThe timestamp from the oplog entry associated with the event.与事件关联的oplog条目中的时间戳。
For events that happened as part of a multi-document transaction, the associated change stream notifications will have the same clusterTime value, namely the time when the transaction was committed.对于作为多文档事务一部分发生的事件，关联的更改流通知将具有相同的clusterTime值，即提交事务的时间。
On a sharded cluster, events that occur on different shards can have the same clusterTime but be associated with different transactions or even not be associated with any transaction.在分片集群上，发生在不同分片上的事件可以具有相同的clusterTime，但与不同的事务关联，甚至不与任何事务关联。
To identify events for a single transaction, you can use the combination of lsid and txnNumber in the change stream event document.要识别单个事务的事件，可以在变更流事件文档中使用lsid和txnNumber的组合。
For unsharded collections this contains a single field 对于未排序的集合，它包含一个字段_id._id。
For sharded collections, this will contain all the components of the shard key对于分片集合，它将包含分片键的所有组件
The fullDocument of a replace event represents the document after the insert of the replacement document替换事件的fullDocument表示插入替换文档后的文档
Optional fullContains the pre-image of the modified or deleted document if the pre-image is available for the change event and either 'required' or 'whenAvailable' was specified for the 'fullDocumentBeforeChange' option when creating the change stream. 如果预图像可用于更改事件，并且在创建更改流时为“fullDocumentBeforeChange”选项指定了“required”或“whenAvailable”，则包含修改或删除文档的预图像。If 'whenAvailable' was specified but the pre-image is unavailable, this will be explicitly set to null.如果指定了“whenAvailable”，但预映像不可用，则会将其显式设置为null。
Optional lsidThe identifier for the session associated with the transaction.与事务关联的会话的标识符。
Only present if the operation is part of a multi-document transaction.仅当操作是多文档事务的一部分时才显示。
Namespace the replace event occurred on发生替换事件的命名空间
Describes the type of operation represented in this change notification描述此更改通知中表示的操作类型
Optional splitWhen the change stream's backing aggregation pipeline contains the $changeStreamSplitLargeEvent stage, events larger than 16MB will be split into multiple events and contain the following information about which fragment the current event is.当变更流的后台聚合管道包含$changeStreamSplitTargetEvent阶段时，大于16MB的事件将被拆分为多个事件，并包含以下关于当前事件是哪个片段的信息。
Optional txnThe transaction number.事务记录编号。
Only present if the operation is part of a multi-document transaction.仅当操作是多文档事务的一部分时才显示。
NOTE: txnNumber can be a Long if promoteLongs is set to false如果promoteLongs设置为false，txnNumber可以是Long
Generated using TypeDoc
See
/v7.0/reference/change-events/#replace-event