[jira] [Commented] (DRILL-5002) Using hive's date functions on top of date column in parquet gives wrong results

["Vitalii Diravka (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-5002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15742842#comment-15742842 ] 

Vitalii Diravka commented on DRILL-5002:
----------------------------------------

[~rkins] I tested these functions with hive plugin and they worked properly. But I see that you used the classpath plugin.
Does hive's functions could work with any other plugin than hive? I tested hive's functions from drill unit tests framework and they don't work with cp plugin there.
But drillbit can run these functions with cp plugin. Anyway they returned correct result. 
{code}
0: jdbc:drill:zk=local> select l_shipdate, `month`(l_shipdate), DATE_PART('month', l_shipdate)  from hive.`tpch/lineitem.parquet` where l_shipdate = date '1994-02-01' limit 2;
+-------------+---------+---------+
| l_shipdate  | EXPR$1  | EXPR$2  |
+-------------+---------+---------+
| 1994-02-01  | 2       | 2       |
| 1994-02-01  | 2       | 2       |
+-------------+---------+---------+
{code}
{code}
0: jdbc:drill:zk=local> select l_shipdate, `day`(l_shipdate), DATE_PART('day', l_shipdate) from cp.`tpch/lineitem.parquet` where l_shipdate = date '1998-06-02' limit 2;
+-------------+---------+---------+
| l_shipdate  | EXPR$1  | EXPR$2  |
+-------------+---------+---------+
| 1998-06-02  | 2       | 2       |
| 1998-06-02  | 2       | 2       |
+-------------+---------+---------+
{code}
{code}
0: jdbc:drill:zk=local> select l_shipdate, last_day(l_shipdate) from cp.`tpch/lineitem.parquet` where l_shipdate = date '1994-02-01' limit 2;
+-------------+-------------+
| l_shipdate  |   EXPR$1    |
+-------------+-------------+
| 1994-02-01  | 1994-02-28  |
| 1994-02-01  | 1994-02-28  |
+-------------+-------------+
{code}
Which version of drill did you use? I tested these functions on the last drill master (1.10.0-SNAPSHOT) and on the 1.9.0 and got the same results.
What are the settings of your cp plugin? Is this issue still reproduced on your environment?

> Using hive's date functions on top of date column in parquet gives wrong results
> --------------------------------------------------------------------------------
>
>                 Key: DRILL-5002
>                 URL: https://issues.apache.org/jira/browse/DRILL-5002
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Functions - Hive, Storage - Parquet
>            Reporter: Rahul Challapalli
>            Assignee: Vitalii Diravka
>            Priority: Critical
>
> git.commit.id.abbrev=190d5d4
> Wrong Result 1 :
> {code}
> select l_shipdate, `month`(l_shipdate) from cp.`tpch/lineitem.parquet` where l_shipdate = date '1994-02-01' limit 2;
> +-------------+---------+
> | l_shipdate  | EXPR$1  |
> +-------------+---------+
> | 1994-02-01  | 1       |
> | 1994-02-01  | 1       |
> +-------------+---------+
> {code}
> Wrong Result 2 : 
> {code}
> select l_shipdate, `day`(l_shipdate) from cp.`tpch/lineitem.parquet` where l_shipdate = date '1998-06-02' limit 2;
> +-------------+---------+
> | l_shipdate  | EXPR$1  |
> +-------------+---------+
> | 1998-06-02  | 1       |
> | 1998-06-02  | 1       |
> +-------------+---------+
> {code}
> Correct Result :
> {code}
> select l_shipdate, `month`(l_shipdate) from cp.`tpch/lineitem.parquet` where l_shipdate = date '1998-06-02' limit 2;
> +-------------+---------+
> | l_shipdate  | EXPR$1  |
> +-------------+---------+
> | 1998-06-02  | 6       |
> | 1998-06-02  | 6       |
> +-------------+---------+
> {code}
> It looks like we are getting wrong results when the 'day' is '01'. I only tried month and day hive functions....but wouldn't be surprised if they have similar issues too.



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