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From Lefty Leverenz <>
Subject Re: External partition table question
Date Fri, 18 Jul 2014 05:24:41 GMT
Thanks for this clarification.  I've revised the Add Partitions section
in the wiki accordingly.

-- Lefty

On Fri, Jul 18, 2014 at 12:45 AM, Satish Mittal <>

> 'ALTER TABLE .. ADD PARTITION..' would just a partition entry for the
> table in hive metastore. It doesn't perform any data loading, instead it
> expects the data to be loaded already in the file pointed to by LOCATION.
> On Tue, Jul 15, 2014 at 5:39 AM, Raymond Lau <> wrote:
>> I've created an external table partitioned by a field and am attempting
>> to load in the data via the command 'ALTER TABLE partitioned_table_test ADD
>> PARTITION (pcode = '123') LOCATION '/path/to/parquet/files';' using a
>> custom Parquet SerDe.
>> Does loading in the data this way call the serializer() function in the
>> SerDe at all?
>>  I've tried adding System.out.println statements in my deserializer and
>> serializer to debug and no output seems to come from the Serializer
>> function.
>> --
>> *Raymond Lau*
>> Software Engineer - Intern |
>> | (925) 395-3806
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