Paul Rogers created DRILL-4764:
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Summary: Parquet file with INT_16 logical type not supported by
simple SELECT
Key: DRILL-4764
URL: https://issues.apache.org/jira/browse/DRILL-4764
Project: Apache Drill
Issue Type: Bug
Components: Execution - Data Types
Affects Versions: 1.6.0
Reporter: Paul Rogers
Create a Parquet file with the following schema:
message int16Data { required int32 index; required int32 value (INT_16); }
Store it as int_16.parquet in the local file system. Query it with:
SELECT * from `local`.`root`.`int_16.parquet`;
The result, in the web UI, is this error:
org.apache.drill.common.exceptions.UserRemoteException: SYSTEM ERROR:
UnsupportedOperationException: unsupported type: INT32 INT_16 Fragment 0:0
[Error Id: c63f66b4-e5a9-4a35-9ceb-546b74645dd4 on 172.30.1.28:31010]
The INT_16 logical (or "original") type simply tells consumers of the file that
the data is actually a 16-bit signed int. Presumably, this should tell Drill to
use the SmallIntVector (or NullableSmallIntVector) class for storage. Without
supporting this annotation, even 16-bit integers must be stored as 32-bits
within Drill.
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