Is it possible to change the metadata of a column that is on a partitioned table in Hive?
You can easily change column type:
Use alter table in Hive, change type to STRING, etc:
alter table table_name change column col_name col_name string cascade; --change to string
See documentation.
ALTER TABLE CHANGE COLUMN
with CASCADE
command changes the columns of a table's metadata, and cascades the same change to all the partition metadata.
Alternatively you can recreate table like in this answer: https://stackoverflow.com/a/58299056/2700344