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https://issues.apache.org/jira/browse/DRILL-5002?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rahul Challapalli updated DRILL-5002:
-------------------------------------
Attachment: 0_0_0.parquet
Check the exact same query that I ran from the above comment. The below query
is also one good example
*DRILL* : Wrong Result
{code}
select l_shipdate, last_day(l_shipdate) from hive.lineitem where l_shipdate =
date '1994-02-01' limit 2;
+-------------+-------------+
| l_shipdate | EXPR$1 |
+-------------+-------------+
| 1994-02-01 | 1994-01-31 |
| 1994-02-01 | 1994-01-31 |
+-------------+-------------+
2 rows selected (0.402 seconds)
{code}
*HIVE* : Correct Result
{code}
hive> select l_shipdate, `last_day`(l_shipdate) from lineitem where l_shipdate
= date '1994-02-01' limit 2;
OK
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further
details.
1994-02-01 1994-02-28
1994-02-01 1994-02-28
Time taken: 1.608 seconds, Fetched: 2 row(s)
{code}
> 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
> Attachments: 0_0_0.parquet
>
>
> 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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