Vandana Yadav created CARBONDATA-996:
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Summary: Incorrect result displays while using var_pop aggregate function in presto integration
Key: CARBONDATA-996
URL:
https://issues.apache.org/jira/browse/CARBONDATA-996 Project: CarbonData
Issue Type: Bug
Components: data-query, presto-integration
Affects Versions: 1.1.0
Environment: spark 2.1, presto 0.166
Reporter: Vandana Yadav
Priority: Minor
Attachments: 2000_UniqData.csv
Incorrect result displays while using var_pop aggregate function in presto integration
Steps to reproduce :
1. In CarbonData:
a) Create 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 ("TABLE_BLOCKSIZE"= "256 MB");
b) Load data :
LOAD DATA INPATH 'hdfs://localhost:54310/2000_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');
2. In presto
a) Execute the query:
select var_pop(DECIMAL_COLUMN1) as a from (select DECIMAL_COLUMN1 from UNIQDATA order by DECIMAL_COLUMN1) t
Actual result:
In CarbonData:
"+---------------------+--+
| a |
+---------------------+--+
| 333665.66547125275 |
+---------------------+--+
1 row selected (0.85 seconds)
"
In Presto:
" a
-------------------
333665.4683101308
(1 row)
Query 20170420_082535_00061_hd7jy, FINISHED, 1 node
Splits: 35 total, 35 done (100.00%)
0:00 [2.01K rows, 1.97KB] [7.12K rows/s, 6.97KB/s]
"
Expected result: it should display the same result as showing in CarbonData.
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