Ramana Inukonda Nagaraj created DRILL-2262: ----------------------------------------------
Summary: selecting columns of certain datatypes from a parquet file created by drill fails Key: DRILL-2262 URL: https://issues.apache.org/jira/browse/DRILL-2262 Project: Apache Drill Issue Type: Bug Components: Storage - Parquet Reporter: Ramana Inukonda Nagaraj Assignee: Steven Phillips Priority: Critical After creating a parquet file containing all datatypes using CTAS from drill certain columns are not readable by doing a select in drill. These datatypes are : DECIMAL18_col: OPTIONAL INT64 O:DECIMAL R:0 D:1 TIME_col: OPTIONAL INT32 O:TIME R:0 D:1 TIMESTAMP_col: OPTIONAL INT64 O:TIMESTAMP R:0 D:1 The select from these columns fails with a similar error {code} 0: jdbc:drill:> select DECIMAL18_col from parquet_all_default limit 1; Query failed: RemoteRpcException: Failure while running fragment., org.apache.drill.exec.vector.NullableDecimal18Vector cannot be cast to org.apache.drill.exec.vector.NullableBigIntVector [ 26094858-356a-4128-ba2a-aa1473f74c93 on 10.10.30.167:31010 ] [ 26094858-356a-4128-ba2a-aa1473f74c93 on 10.10.30.167:31010 ] Error: exception while executing query: Failure while executing query. (state=,code=0) 0: jdbc:drill:> select TIME_col from parquet_all_default limit 1; Query failed: RemoteRpcException: Failure while running fragment., org.apache.drill.exec.vector.NullableTimeVector cannot be cast to org.apache.drill.exec.vector.NullableIntVector [ 8938245b-a3a8-4bf2-8b6a-7e3860c90e8e on 10.10.30.167:31010 ] [ 8938245b-a3a8-4bf2-8b6a-7e3860c90e8e on 10.10.30.167:31010 ] Error: exception while executing query: Failure while executing query. (state=,code=0) 0: jdbc:drill:> select TIMESTAMP_col from parquet_all_default limit 1; Query failed: RemoteRpcException: Failure while running fragment., org.apache.drill.exec.vector.NullableTimeStampVector cannot be cast to org.apache.drill.exec.vector.NullableBigIntVector [ 5dff5b38-ece7-4159-acfe-78dacb563e20 on 10.10.30.167:31010 ] [ 5dff5b38-ece7-4159-acfe-78dacb563e20 on 10.10.30.167:31010 ] Error: exception while executing query: Failure while executing query. (state=,code=0) {code} Note: Dictionary encoding is turned on by default as of commit : https://github.com/apache/drill/commit/00c08eff2a5de6e4334fb57e952aac9a852c3d37 After setting session options to turn off dictionary encoding the same queries succeed successfully. -- This message was sent by Atlassian JIRA (v6.3.4#6332)