[jira] [Created] (HIVE-13777) NPE is thrown when select table after change column from string to decimal

[Takahiko Saito (JIRA)]

Takahiko Saito created HIVE-13777:
-------------------------------------

             Summary: NPE is thrown when select table after change column from 
string to decimal
                 Key: HIVE-13777
                 URL: https://issues.apache.org/jira/browse/HIVE-13777
             Project: Hive
          Issue Type: Bug
    Affects Versions: 1.2.1, 2.1.0
            Reporter: Takahiko Saito


Run the followings to change a column from string to decimail:
{noformat}
drop table if exists 
shcemaevo_vectorization_true_disallowincompatible_false_fileformat_orc_string_decimal;
create table 
shcemaevo_vectorization_true_disallowincompatible_false_fileformat_orc_string_decimal
 stored as orc as select s, s_dc from schemaevo;
alter table 
shcemaevo_vectorization_true_disallowincompatible_false_fileformat_orc_string_decimal
 change column s_dc s_dc decimal(12,4);
select count(*) from 
shcemaevo_vectorization_true_disallowincompatible_false_fileformat_orc_string_decimal;
{noformat}

select count works fine but just select throws NPE:
{noformat}
0: jdbc:hive2://os-r6-0517-hiveserver2-1-1.op> select count(*) from 
shcemaevo_vectorization_true_disallowincompatible_false_fileformat_orc_string_decimal;
+---------+--+
|   c0    |
+---------+--+
| 100000  |
+---------+--+
1 row selected (13.856 seconds)
0: jdbc:hive2://os-r6-0517-hiveserver2-1-1.op> select * from 
shcemaevo_vectorization_true_disallowincompatible_false_fileformat_orc_string_decimal;
Error: java.io.IOException: java.lang.NullPointerException (state=,code=0)
{noformat}



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