06-10-2014 09:10 AM
I am trying to run a simple query against an External Impala table with Parquet files. When submitting the statement 'select sum(avgval) from test; I receive the following error: 'Backend 0:Unexpected dictionary page. Dictionary page is only supported for string types.' The avgval field is defined as int.
Any ideas why this is happening and how to fix it?
06-10-2014 12:42 PM
Please upgrade to the latest version. You've using a version that does not support the entire parquet file format spec.
Out of curiosity, what did you use to generate the parquet files? I suspect it is newer writer.