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From "Liang Chen (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CARBONDATA-1441) schema change does not reflect back in hive when schema is alter in carbon
Date Sat, 02 Sep 2017 02:56:03 GMT

     [ https://issues.apache.org/jira/browse/CARBONDATA-1441?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Liang Chen resolved CARBONDATA-1441.
------------------------------------
       Resolution: Fixed
    Fix Version/s: 1.2.0

> schema change does not reflect back in hive when schema is alter in carbon
> --------------------------------------------------------------------------
>
>                 Key: CARBONDATA-1441
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-1441
>             Project: CarbonData
>          Issue Type: Bug
>          Components: hive-integration
>         Environment: spark2.1,hadoop2.7,hive 1.2.1
>            Reporter: anubhav tarar
>            Assignee: anubhav tarar
>            Priority: Minor
>             Fix For: 1.2.0
>
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> steps to reproduce
> 1. alter table schema in hive
> 0: jdbc:hive2://localhost:10000> desc uniqdata;
> +----------------------+-----------------+----------+--+
> |       col_name       |    data_type    | comment  |
> +----------------------+-----------------+----------+--+
> | CUST_ID              | int             | NULL     |
> | CUST_NAME            | string          | NULL     |
> | ACTIVE_EMUI_VERSION  | string          | NULL     |
> | DOB                  | timestamp       | NULL     |
> | DOJ                  | timestamp       | NULL     |
> | BIGINT_COLUMN1       | bigint          | NULL     |
> | BIGINT_COLUMN2       | bigint          | NULL     |
> | DECIMAL_COLUMN1      | decimal(30,10)  | NULL     |
> | DECIMAL_COLUMN2      | decimal(36,10)  | NULL     |
> | Double_COLUMN1       | double          | NULL     |
> | Double_COLUMN2       | double          | NULL     |
> | INTEGER_COLUMN1      | int             | NULL     |
> +----------------------+-----------------+----------+--+
> 12 rows selected (0.638 seconds)
> 0: jdbc:hive2://localhost:10000> alter table uniqdata change cust_id cust_id long;
> +---------+--+
> | Result  |
> +---------+--+
> +---------+--+
> No rows selected (7.619 seconds)
> 0: jdbc:hive2://localhost:10000> desc uniqdata;
> +----------------------+-----------------+----------+--+
> |       col_name       |    data_type    | comment  |
> +----------------------+-----------------+----------+--+
> | cust_id              | bigint          | NULL     |
> | cust_name            | string          | NULL     |
> | active_emui_version  | string          | NULL     |
> | dob                  | timestamp       | NULL     |
> | doj                  | timestamp       | NULL     |
> | bigint_column1       | bigint          | NULL     |
> | bigint_column2       | bigint          | NULL     |
> | decimal_column1      | decimal(30,10)  | NULL     |
> | decimal_column2      | decimal(36,10)  | NULL     |
> | double_column1       | double          | NULL     |
> | double_column2       | double          | NULL     |
> | integer_column1      | int             | NULL     |
> +----------------------+-----------------+----------+--+
> 12 rows selected (0.431 seconds)
> 2.start hive cli and desc same table
> 0: jdbc:hive2://localhost:10000> desc uniqdata;
> +----------------------+-----------------+----------+--+
> |       col_name       |    data_type    | comment  |
> +----------------------+-----------------+----------+--+
> | cust_id              | int             |          |
> | cust_name            | string          |          |
> | active_emui_version  | string          |          |
> | dob                  | timestamp       |          |
> | doj                  | timestamp       |          |
> | bigint_column1       | bigint          |          |
> | bigint_column2       | bigint          |          |
> | decimal_column1      | decimal(30,10)  |          |
> | decimal_column2      | decimal(36,10)  |          |
> | double_column1       | double          |          |
> | double_column2       | double          |          |
> | integer_column1      | int             |          |
> +----------------------+------------
> schema change is not reflected in hive when reading carbondata file



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