[DRILL-4996] Parquet Date auto-correction is not working in auto-partitioned parquet files generated by drill-1.6

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 1.10.0
• Component/s: Storage - Parquet
• Labels: ready-to-commit
• Assignee: Vitalii Diravka
• Reporter: Rahul Kumar Challapalli
• Reviewer: Rahul Kumar Challapalli
• Created: 03/Nov/16 18:32
• Updated: 21/Mar/17 17:55
• Resolved: 14/Jan/17 01:54

Description

git.commit.id.abbrev=4ee1d4c

Below are the steps I followed to generate the data :

1. Generate a parquet file with date column using hive1.2
2. Use drill 1.6 to create auto-partitioned parquet files partitioned on the date column

Now the below query returns wrong results :

select i_rec_start_date, i_size from dfs.`/drill/testdata/parquet_date/auto_partition/item_multipart_autorefresh`  group by i_rec_start_date, i_size;
+-------------------+--------------+
| i_rec_start_date  |    i_size    |
+-------------------+--------------+
| null              | large        |
| 366-11-08        | extra large  |
| 366-11-08        | medium       |
| null              | medium       |
| 366-11-08        | petite       |
| 364-11-07        | medium       |
| null              | petite       |
| 365-11-07        | medium       |
| 368-11-07        | economy      |
| 365-11-07        | large        |
| 365-11-07        | small        |
| 366-11-08        | small        |
| 365-11-07        | extra large  |
| 364-11-07        | N/A          |
| 366-11-08        | economy      |
| 366-11-08        | large        |
| 364-11-07        | small        |
| null              | small        |
| 364-11-07        | large        |
| 364-11-07        | extra large  |
| 368-11-07        | N/A          |
| 368-11-07        | extra large  |
| 368-11-07        | large        |
| 365-11-07        | petite       |
| null              | N/A          |
| 365-11-07        | economy      |
| 364-11-07        | economy      |
| 364-11-07        | petite       |
| 365-11-07        | N/A          |
| 368-11-07        | medium       |
| null              | extra large  |
| 368-11-07        | small        |
| 368-11-07        | petite       |
| 366-11-08        | N/A          |
+-------------------+--------------+
34 rows selected (0.691 seconds)

However I tried generating the auto-partitioned parquet files using Drill 1.2 and then the above query returned the right results.

I attached the required data sets.

Issue Links

• is related to: DRILL-4203 Parquet File : Date is stored wrongly
• links to: GitHub Pull Request #687