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Posted to issues@hive.apache.org by "Syed Shameerur Rahman (Jira)" <ji...@apache.org> on 2019/10/30 13:14:00 UTC
[jira] [Commented] (HIVE-22431) Hive JDBC Storage Handler:
java.lang.ClassCastException on accessing TINYINT, SMALLINT Data Type From
JDBC Data Source
[ https://issues.apache.org/jira/browse/HIVE-22431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16963008#comment-16963008 ]
Syed Shameerur Rahman commented on HIVE-22431:
----------------------------------------------
[~jcamachorodriguez] [~daijy] Could you please review
> Hive JDBC Storage Handler: java.lang.ClassCastException on accessing TINYINT, SMALLINT Data Type From JDBC Data Source
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-22431
> URL: https://issues.apache.org/jira/browse/HIVE-22431
> Project: Hive
> Issue Type: Bug
> Components: StorageHandler
> Reporter: Syed Shameerur Rahman
> Assignee: Syed Shameerur Rahman
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-22431.01.patch
>
>
> Steps to Reproduce:
> {code:java}
> //MySQL table:
> create table testtbl(a TINYINT, b SMALLINT);
> // Insert to table via mysql connector
> //Hive table:
> CREATE EXTERNAL TABLE `hive_table`(
> a TINYINT, b SMALLINT
> )
> STORED BY
> 'org.apache.hive.storage.jdbc.JdbcStorageHandler'
> TBLPROPERTIES (
> 'hive.sql.database.type'='MYSQL',
> 'hive.sql.dbcp.password'='',
> 'hive.sql.dbcp.username'='',
> 'hive.sql.jdbc.driver'='com.mysql.jdbc.Driver',
> 'hive.sql.jdbc.url'='',
> 'hive.sql.table'='testtbl');
> //Hive query:
> select * from hive_table;
> {code}
> *Failed with exception java.io.IOException:org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Byte*
> *Failed with exception java.io.IOException:org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Short*
> {code:java}
> {code}
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