Vandana Yadav created CARBONDATA-1664:
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Summary: Abnormal behavior of timestamp data type in carbondata
Key: CARBONDATA-1664
URL: https://issues.apache.org/jira/browse/CARBONDATA-1664
Project: CarbonData
Issue Type: Bug
Components: data-query
Affects Versions: 1.3.0
Environment: spark 2.1
Reporter: Vandana Yadav
Attachments: 2000_UniqData.csv
Abnormal behavior of timestamp data type in carbondata
Steps to Reproduce:
1) 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")
2)Load Data:
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')
3) Execute Query:
a) select DOB from UNIQDATA where DOB ='1970-01-01 10:00:03.0' or DOB =
'1970-01-04 01:00:03.0';
output:
+------------------------+--+
| DOB |
+------------------------+--+
| 1970-01-01 10:00:03.0 |
| 1970-01-04 01:00:03.0 |
+------------------------+--+
b) select DOB from UNIQDATA where DOB in ('1970-01-01 10:00:03.0','1970-01-04
01:00:03.0');
+------+--+
| DOB |
+------+--+
+------+--+
c)select DOB from UNIQDATA where DOB in (cast('1970-01-01 10:00:03.0' as
timestamp),cast('1970-01-04 01:00:03.0' as timestamp));
+------------------------+--+
| DOB |
+------------------------+--+
| 1970-01-01 10:00:03.0 |
| 1970-01-04 01:00:03.0 |
+------------------------+--+
Abnormality of timestamp datatype:
In the select query (a) it fetch the records containing DOB 1970-01-01
10:00:03.0 and 1970-01-04 01:00:03.0 but for query (b) while using IN operator
it shows no data and again in the same query when we cast it to timestamp as in
query (c) it displays result.
There should be a strict type checking for timestamp values.
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