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When you apply aggregate function on a column whose data type is "void" you get the above error.

How you get "void" as datatype?

When you create a table from another table(CTAS) & hardcode NULL as column values in the base table, you get the datatype as "void" for those columns. Consider the following example. This is a bug https://issues.apache.org/jira/browse/HIVE-11217

hive> create table test1 as select null as col1, null as col2;
Query ID = hive_20161227141826_d746f7f8-f867-4376-8b58-2e03e63c9763
Total jobs = 1
Launching Job 1 out of 1
Status: Running (Executing on YARN cluster with App id application_1481936603759_0026)
--------------------------------------------------------------------------------
        VERTICES      STATUS  TOTAL  COMPLETED  RUNNING  PENDING  FAILED  KILLED
--------------------------------------------------------------------------------
Map 1 ..........   SUCCEEDED      1          1        0        0       0       0
--------------------------------------------------------------------------------
VERTICES: 01/01  [==========================>>] 100%  ELAPSED TIME: 6.96 s
--------------------------------------------------------------------------------
Moving data to: hdfs://mrt1.openstacklocal:8020/apps/hive/warehouse/test1
Table default.test1 stats: [numFiles=1, numRows=1, totalSize=6, rawDataSize=5]
OK
Time taken: 8.553 seconds
hive> desc test1;
OK
col1                	void
col2                	void
Time taken: 0.469 seconds, Fetched: 2 row(s)

Resolution:

The fix for HIVE-11217 simply disallows the table from being created in the first place if the columns are void. The fix is only available in the Hive-2 line (HSI-Hive Server Interactive) in HDP 2.5

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New Contributor

Hi,

Thanks for the detail explanation.

I am working HDP 2.6 and Hive 2.0. Is this fix available in this vesrion?

Because still i am getting void data type.

Thanks in advance.

Rajkumar K

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‎12-27-2016 02:32 PM
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