[jira] [Created] (DRILL-2338) DECIMAL 38 when stored as a required datatype results in wrong data

["Ramana Inukonda Nagaraj (JIRA)" <ji...@apache.org>]

Ramana Inukonda Nagaraj created DRILL-2338:
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             Summary: DECIMAL 38 when stored as a required datatype results in wrong data
                 Key: DRILL-2338
                 URL: https://issues.apache.org/jira/browse/DRILL-2338
             Project: Apache Drill
          Issue Type: Bug
          Components: Storage - Parquet
    Affects Versions: 0.8.0
            Reporter: Ramana Inukonda Nagaraj
            Assignee: Mehant Baid


Writing out a decimal 38 column by casting a literal results in a different value being written out.

{code}
0: jdbc:drill:> create table mehant_bug as select cast('1.2' as decimal(38,2)) from cp.`employee.json` limit 1;

0: jdbc:drill:> select * from mehant_bug;
+------------+
|   EXPR$0   |
+------------+
| 12000000.00 |
+------------+
1 row selected (0.08 seconds)
{code}

[root@perfnode167 impala_parquet]# parquet-tools-1.5.1-SNAPSHOT/parquet-schema  ../mehant_bug/0_0_0.parquet 
message root {
  required fixed_len_byte_array(16) EXPR$0 (DECIMAL(38,2));
}

If the column is stored as optional we do not have this issue.




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