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https://issues.apache.org/jira/browse/HIVE-13777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Takahiko Saito resolved HIVE-13777.
-----------------------------------
Resolution: Cannot Reproduce
The issue was not reproduced with later code.
> 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: 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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