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Hive >> mail # user >> Renaming partition columnname only (locations remain unchanged)


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Re: Renaming partition columnname only (locations remain unchanged)
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 <
[EMAIL PROTECTED]> 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
>
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Nitin Pawar
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB