lucasmo commented on pull request #3391:
URL: https://github.com/apache/hudi/pull/3391#issuecomment-1018006956
I was directed to add a comment here from hudi slack.
Our team us experimenting with MOR tables. Our write ecosystem is AWS Glue
and our query ecosystem for this use case is AWS Athena. Our writes are working
fine. However, when querying with Athena, we get the following error:
> GENERIC_INTERNAL_ERROR: org.apache.hadoop.io.LongWritable cannot be cast
to org.apache.hadoop.hive.serde2.io.TimestampWritable
This error occurs if we choose to select any timestamp field. Selecting only
non-timestamp fields works correctly. We searched and found no working
resolution.
Our table looks like this:
```
CREATE EXTERNAL TABLE `foo_table_mor`(
`foo_id` bigint,
`foo_timestamp` timestamp,
`_hoodie_commit_time` string,
`_hoodie_commit_seqno` string,
`_hoodie_record_key` string,
`_hoodie_partition_path` string,
`_hoodie_file_name` string)
ROW FORMAT SERDE
'org.apache.hadoop.hive.ql.io.parquet.serde.ParquetHiveSerDe'
STORED AS INPUTFORMAT
'org.apache.hudi.hadoop.realtime.HoodieParquetRealtimeInputFormat'
OUTPUTFORMAT
'org.apache.hadoop.hive.ql.io.parquet.MapredParquetOutputFormat'
LOCATION
's3://foo-bucket/foo-prefix/'
```
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