[jira] [Created] (CARBONDATA-2105) Incorrect result displays after creating data map

[Vandana Yadav (JIRA)]

Vandana Yadav created CARBONDATA-2105:
-----------------------------------------

             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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