[jira] [Updated] (CARBONDATA-1725) Wrong data displayed for <= filter for timestamp column(dictionary column)

[Akash R Nilugal (Jira)]

     [ https://issues.apache.org/jira/browse/CARBONDATA-1725?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

dhatchayani updated CARBONDATA-1725:
------------------------------------
    Description:
*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.

  was:
*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.

> Wrong data displayed for <= filter for timestamp column(dictionary column)
> --------------------------------------------------------------------------
>
>                 Key: CARBONDATA-1725
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-1725
>             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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