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Posted to user@spark.apache.org by Xiaoli Li <li...@gmail.com> on 2014/01/07 18:25:32 UTC
How to map index from another dataset
Hi,
I have two files. Each line in the first file includes userName and other
relevant information. Each line in the second file includes userName and
userID. I was wondering what is the best way to find userID from the second
file and replace the corresponding userName in the first file.
Thanks in advance.
Best,
Xiaoli