How can I add row numbers for rows in PIG or HIVE?

Question

I have a problem when adding row numbers using Apache Pig. The problem is that I have a STR_ID column and I want to add a ROW_NUM column for the data in STR_ID, which is the

Answer 1

From version 0.11, hive supports analytic functions like lead,lag and also row number

https://issues.apache.org/jira/browse/HIVE-896