PDI的steps:(2:Add a checksum)
2013-05-20 19:13 很大很老实 阅读(335) 评论(0) 编辑 收藏 举报steps的连接:
http://wiki.pentaho.com/display/EAI/Pentaho+Data+Integration+Steps
名称:Add a checksum
id:CheckSum
种类:转换;
描述:对input的每一行,加一个checksum列。
所属类:org.pentaho.di.trans.steps.checksum.CheckSumMeta
Option | Description |
---|---|
Step name | Name of the step. Note: This name has to be unique in a single transformation. |
Type | The type of checksum that needs to be calculated. These are the types that are available:
|
Result field | The name of the result field containing the checksum |
Fields used in the checksum | The names of the fields to include in the checksum calculation. Note: You can use the "Get Fields" button to insert all input fields from previous steps. |
PDI还专门提供了一个CRC32的例子。