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For row change timestamp columns only, if the column is defined with the IMPLICITLY HIDDEN attribute, then it is not externalized when there is an implicit reference to the columns of the table.
对于行修改时间戳列(只针对这种列),如果该列使用IMPLICITLY hidden属性定义,那么当对表列进行隐式引用时,不会对该列执行外部化。
If you need to define the replicates for only a set of columns from the table, then you have to use individual replicates or use the template and then change the individual replicates.
如果只需为表中的部分列定义复制,那么必须使用单个的复制,或者使用模板,然后更改单个的复制。
The change tables used by change data capture contain columns that mirror the column structure of a tracked source table, along with the metadata needed to understand the changes that have occurred.
在CDC使用的变更数据表中,包含了被跟踪源数据表的列结构的镜像列,并额外包含了一些元数据来记录发生了那些变更。
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