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Posted to issues@carbondata.apache.org by "dhatchayani (JIRA)" <ji...@apache.org> on 2017/11/15 12:44:00 UTC
[jira] [Created] (CARBONDATA-1720) Wrong data displayed for <=
filter for timestamp column(dictionary column)
dhatchayani created CARBONDATA-1720:
---------------------------------------
Summary: Wrong data displayed for <= filter for timestamp column(dictionary column)
Key: CARBONDATA-1720
URL: https://issues.apache.org/jira/browse/CARBONDATA-1720
Project: CarbonData
Issue Type: Bug
Reporter: dhatchayani
Assignee: dhatchayani
*Issue:*
<= filter is giving wrong results for timestamp dictioinary column
*Steps to reproduce:*
(1) Create a table with a timestamp dictionary column
create table t1(dob timestamp) stored by 'carbondata' TBLPROPERTIES ('DICTIONARY_INCLUDE'='dob')
(2) Load data
1970-01-01 05:30:00 (same value as 300 records)
(3) Apply filter on table
select count(*) from t1 where dob=cast('1970-01-01 05:30:00' as timestamp);
+--------+
|count(1)|
+--------+
|300 |
+--------+
select count(*) from t1 where dob<=cast('1970-01-01 05:30:00' as timestamp);
+--------+
|count(1)|
+--------+
|1 |
+--------+
Both the queries should give us the same results.
Solution:
In less than equal to filter, we are considering surrogate 2 as default value. But surrogate 1 is for default value.
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