currently hive partitions on hdfs stored as col1=val1/col2=val2 looking at this if you change the column name in the metadata, I am not sure you will be able to locate the data with old column name. other way would be alter table and and run hdfs move to reflect your new column name in the partition directories on hdfs.
It looks much simpler to just create new table and dump the old one via hive though On Wed, Jun 12, 2013 at 3:46 AM, Sanjay Subramanian < sanjay.subraman...@wizecommerce.com> wrote: > Hi > I have external tables where I want to change the name of the partition > column, locations remaining constant > Is there a way to do this…Else I will drop and create the table with new > partition column names and run my scripts to ADD PARTITION, with LOCATION > specified > Thanks > sanjay > > CONFIDENTIALITY NOTICE > ====================== > This email message and any attachments are for the exclusive use of the > intended recipient(s) and may contain confidential and privileged > information. Any unauthorized review, use, disclosure or distribution is > prohibited. If you are not the intended recipient, please contact the > sender by reply email and destroy all copies of the original message along > with any attachments, from your computer system. If you are the intended > recipient, please be advised that the content of this message is subject to > access, review and disclosure by the sender's Email System Administrator. > -- Nitin Pawar
