Hi Joaquin
In hive , when u run 'select * from employee' it is going to return the
partitioned columns also at the end, whereas you don't want that to be
inserted into ur ORC table , so ur insert query should look like
INSERT INTO TABLE employee_orc PARTITION (country='USA',
office='HQ-TX') select eid,salary from employee where country='USA' and
office='HQ-TX';
Remember partition in hive is a physical folder name
Regards
Suresh
On Tue, Dec 13, 2016 at 6:37 AM Joaquin Alzola <joaquin.alz...@lebara.com>
wrote:
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> Hi List
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> I change Spark to 2.0.2 and Hive 2.0.1.
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> I have the bellow tables but the INSERT INTO TABLE employee_orc PARTITION
> (country='USA', office='HQ-TX') select * from employee where country='USA'
> and office='HQ-TX';
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> Is giving me à Cannot insert into table `default`.`employee_orc` because
> the number of columns are different: need 4 columns, but query has 6
> columns.;
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> When doing select it is adding the Partition as columns ….
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> CREATE TABLE IF NOT EXISTS employee ( eid int, name String,
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> salary String, destination String)
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> COMMENT 'Employee details'
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> PARTITIONED BY(country string, office string)
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> ROW FORMAT DELIMITED
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> FIELDS TERMINATED BY '\t'
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> LINES TERMINATED BY '\n'
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> STORED AS TEXTFILE;
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> CREATE TABLE IF NOT EXISTS employee_orc ( eid int, name String,
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> salary String, destination String)
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> COMMENT 'Employee details'
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> PARTITIONED BY(country string, office string)
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> STORED AS ORC tblproperties ("orc.compress"="ZLIB");
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> 0: jdbc:hive2://localhost:10000> LOAD DATA LOCAL INPATH
> '/mnt/sample.txt.gz' INTO TABLE employee PARTITION (country='USA',
> office='HQ-TX');
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> +---------+--+
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> | Result |
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> +---------+--+
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> +---------+--+
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> No rows selected (0.685 seconds)
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> 0: jdbc:hive2://localhost:10000> select * from employee;
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> +-------+--------------+---------+--------------------+----------+---------+--+
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> | eid | name | salary | destination | country | office
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> +-------+--------------+---------+--------------------+----------+---------+--+
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> | 1201 | Gopal | 45000 | Technical manager | USA | HQ-TX
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> | 1202 | Manisha | 45000 | Proof reader | USA | HQ-TX
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> | 1203 | Masthanvali | 40000 | Technical writer | USA | HQ-TX
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> | 1204 | Kiran | 40000 | Hr Admin | USA | HQ-TX
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> | 1205 | Kranthi | 30000 | Op Admin | USA | HQ-TX
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> +-------+--------------+---------+--------------------+----------+---------+--+
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> 5 rows selected (0.358 seconds)
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> 0: jdbc:hive2://localhost:10000> INSERT INTO TABLE employee_orc PARTITION
> (country='USA', office='HQ-TX') select * from employee where country='USA'
> and office='HQ-TX';
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> Error: org.apache.spark.sql.AnalysisException: Cannot insert into table
> `default`.`employee_orc` because the number of columns are different: need
> 4 columns, but query has 6 columns.; (state=,code=0)
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> 0: jdbc:hive2://localhost:10000> describe employee_orc;
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> +--------------------------+------------+----------+--+
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> | col_name | data_type | comment |
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> +--------------------------+------------+----------+--+
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> | eid | int | NULL |
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> | name | string | NULL |
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> | salary | string | NULL |
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> | destination | string | NULL |
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> | country | string | NULL |
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> | office | string | NULL |
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> | # Partition Information | | |
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> | # col_name | data_type | comment |
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> | country | string | NULL |
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> | office | string | NULL |
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> +--------------------------+------------+----------+--+
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> 0: jdbc:hive2://localhost:10000> describe employee;
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> +--------------------------+------------+----------+--+
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> | col_name | data_type | comment |
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> +--------------------------+------------+----------+--+
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> | eid | int | NULL |
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> | name | string | NULL |
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> | salary | string | NULL |
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> | destination | string | NULL |
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> | country | string | NULL |
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> | office | string | NULL |
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> | # Partition Information | | |
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> | # col_name | data_type | comment |
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> | country | string | NULL |
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> | office | string | NULL |
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> +--------------------------+------------+----------+--+
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> 10 rows selected (0.045 seconds)
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