Interface ChangeStreamInsertDocument<TSchema>

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。

The 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。

The UUID (Binary subtype 4) of the collection that the operation was performed on.对其执行操作的集合的UUID（二进制子类型4）。

Only present when the showExpandedEvents flag is enabled.仅在启用showExpandedEvents标志时出现。

NOTE: collectionUUID will be converted to a NodeJS Buffer if the promoteBuffers flag is enabled.如果promoteBuffers标志已启用，collectionUUID将被转换为NodeJS缓冲区。

Since Server Version

6.1.0

For unsharded collections this contains a single field _id.对于未排序的集合，它包含一个字段_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 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。

When 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。

The 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