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Posted to dev@drill.apache.org by "Ramana Inukonda Nagaraj (JIRA)" <ji...@apache.org> on 2015/02/27 20:56:04 UTC
[jira] [Created] (DRILL-2338) DECIMAL 38 when stored as a required
datatype results in wrong data
Ramana Inukonda Nagaraj created DRILL-2338:
----------------------------------------------
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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