Vandana Yadav created CARBONDATA-2105:
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Summary: Incorrect result displays after creating data map
Key: CARBONDATA-2105
URL: https://issues.apache.org/jira/browse/CARBONDATA-2105
Project: CarbonData
Issue Type: Bug
Components: data-query
Affects Versions: 1.3.0
Reporter: Vandana Yadav
Attachments: 2000_UniqData.csv
Incorrect result displays after creating data map
Steps to Reproduce:
1. Create a TAble:
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('DICTIONARY_INCLUDE'='CUST_ID,CUST_NAME,ACTIVE_EMUI_VERSION,DOB,DOJ,BIGINT_COLUMN1,BIGINT_COLUMN2,DECIMAL_COLUMN1,DECIMAL_COLUMN2,Double_COLUMN1,Double_COLUMN2,INTEGER_COLUMN1')
2. Load Data
a) LOAD DATA INPATH 'HDFS_URL/BabuStore/Data/uniqdata/2000_UniqData.csv' into
table uniqdata OPTIONS('DELIMITER'=',',
'QUOTECHAR'='"','BAD_RECORDS_ACTION'='FORCE','FILEHEADER'='CUST_ID,CUST_NAME,ACTIVE_EMUI_VERSION,DOB,DOJ,BIGINT_COLUMN1,BIGINT_COLUMN2,DECIMAL_COLUMN1,DECIMAL_COLUMN2,Double_COLUMN1,Double_COLUMN2,INTEGER_COLUMN1')
b) LOAD DATA INPATH 'HDFS_URL/BabuStore/Data/uniqdata/2000_UniqData.csv' into
table uniqdata OPTIONS('DELIMITER'=',',
'QUOTECHAR'='"','BAD_RECORDS_ACTION'='FORCE','FILEHEADER'='CUST_ID,CUST_NAME,ACTIVE_EMUI_VERSION,DOB,DOJ,BIGINT_COLUMN1,BIGINT_COLUMN2,DECIMAL_COLUMN1,DECIMAL_COLUMN2,Double_COLUMN1,Double_COLUMN2,INTEGER_COLUMN1')
c) LOAD DATA INPATH 'HDFS_URL/BabuStore/Data/uniqdata/2000_UniqData.csv' into
table uniqdata OPTIONS('DELIMITER'=',',
'QUOTECHAR'='"','BAD_RECORDS_ACTION'='FORCE','FILEHEADER'='CUST_ID,CUST_NAME,ACTIVE_EMUI_VERSION,DOB,DOJ,BIGINT_COLUMN1,BIGINT_COLUMN2,DECIMAL_COLUMN1,DECIMAL_COLUMN2,Double_COLUMN1,Double_COLUMN2,INTEGER_COLUMN1')
Execute Query:
a) select avg(cust_id) from uniqdata group by cust_id
output:
| 9460.0 |
| 9671.0 |
| 10403.0 |
| 10725.0 |
| 10867.0 |
+---------------+--+
| avg(cust_id) |
+---------------+--+
| 9067.0 |
| 9901.0 |
+---------------+--+
2,002 rows selected (1.718 seconds)
b) create data map:
create datamap uniqdata_agg on table uniqdata using 'preaggregate' as select
avg(cust_id) from uniqdata group by cust_id;
c) select avg(cust_id) from uniqdata group by cust_id;
output:
| NULL |
| NULL |
| NULL |
+---------------+--+
| avg(cust_id) |
+---------------+--+
| NULL |
| NULL |
+---------------+--+
2,002 rows selected (0.895 seconds)
Expected result: it should display similar result as before creating datamap.
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