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From "Victoria Markman (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-2243) Table created as cast of literal to any decimal type either can not be read back or produces incrorrect result
Date Fri, 13 Feb 2015 19:30:12 GMT
Victoria Markman created DRILL-2243:
---------------------------------------

             Summary: Table created as cast of literal to any decimal type either can not
be read back or produces incrorrect result
                 Key: DRILL-2243
                 URL: https://issues.apache.org/jira/browse/DRILL-2243
             Project: Apache Drill
          Issue Type: Bug
          Components: Storage - Parquet
    Affects Versions: 0.8.0
            Reporter: Victoria Markman
            Assignee: Steven Phillips
            Priority: Critical


This bug looks suspiciously similar to drill-2220, but assert is different + wrong result.

Decimal9 : failure to read from the table

{code}
0: jdbc:drill:schema=dfs> select cast('1.2' as decimal(8,2)) from `test.json`;
+------------+
|   EXPR$0   |
+------------+
| 1.20       |
| 1.20       |
| 1.20       |
| 1.20       |
| 1.20       |
| 1.20       |
+------------+
6 rows selected (0.081 seconds)

0: jdbc:drill:schema=dfs> create table temp(c1) as select cast('1.2' as decimal(8,2)) from
`test.json`;
+------------+---------------------------+
|  Fragment  | Number of records written |
+------------+---------------------------+
| 0_0        | 6                         |
+------------+---------------------------+
1 row selected (0.193 seconds)

0: jdbc:drill:schema=dfs> select * from temp;
Query failed: RemoteRpcException: Failure while running fragment., org.apache.drill.exec.vector.Decimal9Vector
cannot be cast to org.apache.drill.exec.vector.IntVector [ 33d801e0-a1d4-4999-9aac-e35f445018bb
on atsqa4-133.qa.lab:31010 ]
[ 33d801e0-a1d4-4999-9aac-e35f445018bb on atsqa4-133.qa.lab:31010 ]
Error: exception while executing query: Failure while executing query. (state=,code=0)
{code}

Decimal18 : failure to read from the table

{code}
0: jdbc:drill:schema=dfs> select cast('1.2' as decimal(28,2)) from `test.json`;
+------------+
|   EXPR$0   |
+------------+
| 1.20       |
| 1.20       |
| 1.20       |
| 1.20       |
| 1.20       |
| 1.20       |
+------------+
6 rows selected (0.064 seconds)

0: jdbc:drill:schema=dfs> create table temp1(c1) as select cast('1.2' as decimal(18,2))
from `test.json`;
+------------+---------------------------+
|  Fragment  | Number of records written |
+------------+---------------------------+
| 0_0        | 6                         |
+------------+---------------------------+
1 row selected (0.257 seconds)

0: jdbc:drill:schema=dfs> select * from temp1;
Query failed: RemoteRpcException: Failure while running fragment., org.apache.drill.exec.vector.Decimal18Vector
cannot be cast to org.apache.drill.exec.vector.BigIntVector [ 5a23c757-9723-43cc-874b-18aaf62640a4
on atsqa4-133.qa.lab:31010 ]
[ 5a23c757-9723-43cc-874b-18aaf62640a4 on atsqa4-133.qa.lab:31010 ]
Error: exception while executing query: Failure while executing query. (state=,code=0)
{code}

Decimal28 : wrong result

{code}
0: jdbc:drill:schema=dfs> create table temp2(c1) as select cast('1.2' as decimal(28,2))
from `test.json`;
+------------+---------------------------+
|  Fragment  | Number of records written |
+------------+---------------------------+
| 0_0        | 6                         |
+------------+---------------------------+
1 row selected (0.194 seconds)

0: jdbc:drill:schema=dfs> select * from temp2;
+------------+
|     c1     |
+------------+
| 12000000.00 |
| 12000000.00 |
| 12000000.00 |
| 12000000.00 |
| 12000000.00 |
| 12000000.00 |
+------------+
6 rows selected (0.057 seconds)
{code}

Decimal38: wrong result

{code}
0: jdbc:drill:schema=dfs> create table temp4(c1) as select cast('1.2' as decimal(38,2))
from `test.json`;
+------------+---------------------------+
|  Fragment  | Number of records written |
+------------+---------------------------+
| 0_0        | 6                         |
+------------+---------------------------+
1 row selected (0.214 seconds)

0: jdbc:drill:schema=dfs> select * from temp4;
+------------+
|     c1     |
+------------+
| 12000000.00 |
| 12000000.00 |
| 12000000.00 |
| 12000000.00 |
| 12000000.00 |
| 12000000.00 |
+------------+
6 rows selected (0.048 seconds)
{code}



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