I want to consolidate the delta tables historical versions and write to another table in append mode

[amitprasad01]

Hi Team, 

I have a table let's say, employee and it has 5 versions .
version 0 and 1 has column A, column B, 
from version 2 column A has been changed to column C and column B to column D. 
I want to ingest version by version without manual intervention. Can you please suggest the best practice here? 

[Lakshay]

Hi @amitprasad01 , When you write to a new table, do you want to write the data from column A and column C to one single column A or you want to create two separate columns named A and C?

[Manoj43774]

Do you want to ingest column a, column b and column a as c at a same time or you want to ingest version 1 then version 2 and so on??

[uday_satapathy]

Have you checked out deltaTable.cloneAtVersion()?