https://community.cloudera.com/t5/Support-Questions/merge-csv-files-based-on-a-column-timestamp-to-get-one-file/m-p/136342#M98991 <P>i have 4 csv files , i want to join and merge these files into one files based on a column timestamps to get one file.using spark or hadoop Please any help would be appreciated</P> Fri, 03 Mar 2017 17:21:41 GMT zoro07500 2017-03-03T17:21:41Z