Thank you,
I am currently using this way. But is there any way to load data from hdfs
to parquet table not via external table or internal table？
At 2017-08-15 10:53:55, "Jim Apple" <[email protected]> wrote:
>http://impala.apache.org/docs/build/html/topics/impala_create_table.html#create_table
>
>I think you can follow these two steps in order:
>
>1. Make an external table referring to the CSV
>
>2. Use CREATE TABLE AS SELECT to make a parquet table
>
>On Mon, Aug 14, 2017 at 7:48 PM, sky <[email protected]> wrote:
>> csv file on the HDFS.
>>
>>
>>
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>>
>> At 2017-08-15 10:42:13, "Jim Apple" <[email protected]> wrote:
>>>Is the data in a format that Impala can read?
>>>
>>>On Mon, Aug 14, 2017 at 7:31 PM, sky <[email protected]> wrote:
>>>> Thank you,
>>>> I read the document.But it only describes the conversion of internal
>>>> and external tables.How to directly load data to parquet table? Could you
>>>> provide an example? Thank You !
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> At 2017-08-15 03:25:43, "Jim Apple" <[email protected]> wrote:
>>>>>Maybe this will help:
>>>>>
>>>>>http://impala.apache.org/docs/build/html/topics/impala_create_table.html#create_table
>>>>>
>>>>>"Although the EXTERNAL and LOCATION clauses are often specified
>>>>>together, LOCATION is optional for external tables, and you can also
>>>>>specify LOCATION for internal tables. The difference is all about
>>>>>whether Impala "takes control" of the underlying data files and moves
>>>>>them when you rename the table, or deletes them when you drop the
>>>>>table. For more about internal and external tables and how they
>>>>>interact with the LOCATION attribute, see Overview of Impala Tables."
>>>>>
>>>>>On Thu, Aug 10, 2017 at 10:45 PM, sky <[email protected]> wrote:
>>>>>> Hi all,
>>>>>> Is there any way to load data from hdfs to parquet table not via
>>>>>> external table or inner table？
>>
>>
>>
>>
