rename field

just4u_sharath · Post by **just4u_sharath** » Sun Apr 13, 2008 3:14 am

for renaming fields, we have modify stage. We can even change the name of the field in copy stage. My question is do the copy stage really supports the assignment operation. When i tried its working, but people said sometimes is really dont work. Why do we need to have the expicit rename funtion in modify when we can easily do it with copy stage.

ray.wurlod · Post by **ray.wurlod** » Sun Apr 13, 2008 4:23 am

The Copy stage can:

change field names

drop fields

re-order fields

change data type to a compatible (automatically converted) data type

The Copy stage can not:

change data in any way

add fields

change data type to an incompatible data type

John Smith · Post by **John Smith** » Mon Apr 14, 2008 7:27 pm

There are overlaps in functionality between a number of DS stages, copy and modify stages are just one example.It's just a feature of the product. That is the reason why you find the comment in the User Guide that there are many different ways to do something in DS (or something along those lines).