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From "Vinod Rohilla (JIRA)" <>
Subject [jira] [Created] (CARBONDATA-1144) Drop column operation failed in Alter table.
Date Thu, 08 Jun 2017 08:07:18 GMT
Vinod Rohilla created CARBONDATA-1144:

             Summary: Drop column operation failed in Alter table. 
                 Key: CARBONDATA-1144
             Project: CarbonData
          Issue Type: Bug
          Components: data-query
    Affects Versions: 1.2.0
         Environment: Spark 2.1
            Reporter: Vinod Rohilla
            Priority: Minor
         Attachments: 2000_UniqData.csv

Drop column does not work in Alter table.

Steps to reproduce:

1: Create a table in Carbon:

CREATE TABLE uniqdata (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) STORED BY 'org.apache.carbondata.format' TBLPROPERTIES ("TABLE_BLOCKSIZE"= "256 MB");

2: Load Data in a table:

LOAD DATA INPATH 'hdfs://localhost:54310/2000_UniqData.csv' into table uniqdata OPTIONS('DELIMITER'=','

3: Run the following query: alter table uniqdata1 drop columns(CUST_NAME);

4: Result:

0: jdbc:hive2://localhost:10000> alter table uniqdata1 drop columns(CUST_NAME);

Error: java.lang.RuntimeException: Alter table drop column operation failed: null (state=,code=0)

Expected Result: Column should be dropped.

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