[jira] [Created] (HIVE-24947) Casting exception when reading vectorized parquet file for insert into

["Marton Bod (Jira)" <ji...@apache.org>]

Marton Bod created HIVE-24947:
---------------------------------

             Summary: Casting exception when reading vectorized parquet file for insert into
                 Key: HIVE-24947
                 URL: https://issues.apache.org/jira/browse/HIVE-24947
             Project: Hive
          Issue Type: Bug
            Reporter: Marton Bod


We have two parquet tables (target and source).

Upon running the query:
{code:java}
set hive.vectorized.execution.enabled=true;
insert into target2 partition(tlmtc_fl_gnrtd_yr_nb, tlmtc_fl_gnrtd_mnth_nb) select * from source;{code}
The following exception is thrown:
{code:java}
Caused by: java.lang.ClassCastException: java.lang.Integer cannot be cast to [B
	at org.apache.hadoop.hive.ql.io.parquet.vector.VectorizedListColumnReader.fillColumnVector(VectorizedListColumnReader.java:308)
	at org.apache.hadoop.hive.ql.io.parquet.vector.VectorizedListColumnReader.convertValueListToListColumnVector(VectorizedListColumnReader.java:342)
	at org.apache.hadoop.hive.ql.io.parquet.vector.VectorizedListColumnReader.readBatch(VectorizedListColumnReader.java:91)
	at org.apache.hadoop.hive.ql.io.parquet.vector.VectorizedParquetRecordReader.nextBatch(VectorizedParquetRecordReader.java:433)
	at org.apache.hadoop.hive.ql.io.parquet.vector.VectorizedParquetRecordReader.next(VectorizedParquetRecordReader.java:376)
	at org.apache.hadoop.hive.ql.io.parquet.vector.VectorizedParquetRecordReader.next(VectorizedParquetRecordReader.java:99)
	at org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.doNext(HiveContextAwareRecordReader.java:365)
	... 24 more
{code}
The same runs without problems when vectorization is turned off. 

Attaching the show create table statements and the sample parquet file so it can reproduced.

cc [~nareshpr]



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