parquet file is Column-based format, if I want to query the data, should I also load them into Column-based format table?
parquet file is Column-based format, if I want to query the data, should I also load them into Column-based format table? If I load them into SQL table or Oracle, is it kind of waste of parquet file’s column-based feature? I mainly use the data for join and aggregation for BI reports.
thanks
How to deal with the error loading parquer data file using read_parquet using R?
I am trying to read a parquet file using the read_parquet function but got the following error: