Main changes
- Exports the selected dataframe in a spark-compatible formated. coercing the precision of datetime columns (2)
- Treats date columns with the appropriate backend (3)
- Columns that define partitions now can receive aliases in the query (4)
- The file format for partitioned tables in both S3 and FS storages don't need a final dash `-` before the extension (5)
- Schema data types for columns were changes: `integer` -> `int` and `number`-> `float`