hive - Modify partition column value -

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can modify value of partitioned table, changing name of partition directory?

the table have has year , month partitions. values stored decimal partitions "2016.0" instead of "2016" , "3.0" instead of "3".

can rename directories , have values in partitions updated?

first rename directories:

hadoop fs -mv /dev/year=2016.0 /dev/year=2016 hadoop fs -mv /dev/year=2016/month=4.0 /dev/year=2016/month=4

let hive metastore know new location/partition:

alter table logs partition(year = 2014, month = 4)  set location 'hdfs://dev/year=2016/month=4';

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