Hi all,
Does anyone know what is the expected behavior on a query like this :
FROM source
INSERT OVERWRITE TABLE dest
SELECT *
INSERT INTO TABLE dest
SELECT *
is it the same as
FROM source
INSERT INTO TABLE dest
SELECT *
INSERT OVERWRITE TABLE dest
SELECT *
?
I'm asking because I ran a
Hi
I have a Customer table with 200 columns I want to create another table from
Customer table which should have only 190 columns.
How can i skip few columns in hive from base table?
Regards,
Chhaya Vishwakarma
The contents of this e-mail and any
Hi All! I created an hbase table and hcatalog table like the following:
hive describe formatted client;
OK
# col_namedata_type comment
a string from deserializer
b
Hey all,
I'm on Hive 0.10.0 on one of my clusters. We had a namenode hostname
change, so I'm trying to point all of our tables, partitions and databases
to the new locations.
When i describe database mydb, the location shows up as
hdfs://old_hostname/user/hive/warehouse/mydb.db, and i want to
Answered my own question, no there is not. The way to do is is to modify
the DB_LOCATION_URI field in metastore.DBS (at least if you're using MySQL)
On Mon, Jun 30, 2014 at 5:14 PM, Jon Bender jonathan.ben...@gmail.com
wrote:
Hey all,
I'm on Hive 0.10.0 on one of my clusters. We had a
I think you should be able to copy the data to a different location and
then drop the old db, and create a new one with the new location.
On Tue, Jul 1, 2014 at 1:54 AM, Jon Bender jonathan.ben...@gmail.com
wrote:
Answered my own question, no there is not. The way to do is is to modify
the
Why dont you just use CTAS (Create table as select), putting the 190
columns in the select part? I guess you're maybe asking for any way to not
have to type all the columns, but I'm not aware of any.
【Phenomenon】
The query results are not the same as when hive.groupby.skewindata was
setted to true and false.
【my question】
I want to calculate the count(*) and count(distinct) simultaneously
,otherwise it will cost 2 MR job to calculate. But when i set the
hive.groupby.skewindata to be true,
