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# 使用 Time Travel 日志
<a name="CHAP_Tasks.CustomizingTasks.TaskSettings.TimeTravel.LogSchema"></a>

*Time Travel 日志文件*是逗号分隔值（CSV）文件，包含以下字段。

```
log_timestamp 
component 
dms_source_code_location 
transaction_id 
event_id 
event_timestamp 
lsn/scn 
primary_key
record_type 
event_type 
schema_name 
table_name 
statement 
action 
result 
raw_data
```

将 Time Travel 日志推送到 S3 后，可使用 Amazon Athena 等工具直接访问和查询这些日志。或者，您可以像从 S3 下载任何文件一样下载日志。

以下示例显示一个 Time Travel 日志，其中记录了名为 `mytable` 的表的事务。为了便于阅读，添加了以下日志的行尾。

```
"log_timestamp ","tt_record_type","dms_source_code_location ","transaction_id",
"event_id","event_timestamp","scn_lsn","primary_key","record_type","event_type",
"schema_name","table_name","statement","action","result","raw_data"
"2021-09-23T01:03:00:778230","SOURCE_CAPTURE","postgres_endpoint_wal_engine.c:00819",
"609284109","565612992","2021-09-23 01:03:00.765321+00","00000E9C/D53AB518","","DML",
"UPDATE (3)","dmstest","mytable","","Migrate","","table dmstest.mytable:
UPDATE: id[bigint]:2244937 phone_number[character varying]:'phone-number-482'
age[integer]:82 gender[character]:'f' isactive[character]:'true ' 
date_of_travel[timestamp without time zone]:'2021-09-23 01:03:00.76593' 
description[text]:'TEST DATA TEST DATA TEST DATA TEST DATA'"
```