Thanks Nandan for the confirmation.I also did the test.
------------------ ???????? ------------------ ??????: "@Nandan@"<[email protected]>; ????????: 2018??2??13??(??????) ????12:52 ??????: "user"<[email protected]>; ????: Re: does copy command will clear all the old data? Hi Peng,Copy command will append upsert all data [based on size] to your existing Cassandra table. Just for testing, I executed before for 500000 data by using COPY command into small cql table and it work very fine. Point to make sure :- Please check your primary key before play with COPY command. Thanks On Tue, Feb 13, 2018 at 12:49 PM, Peng Xiao <[email protected]> wrote: Dear All, I'm trying to import csv file to a table with copy command?The question is: will the copy command clear all the old data in this table?as we only want to append the csv file to this table Thanks
