Features
- Excel file support.
- Table Value Functions: range and tumble for now. Documentation
- Configurable separators for CSV files.
- Support for CSV files with no header row.
- Support for uppercase field names (they get lowercased).
Internals
- We finally switched to a custom sql parser (copied from vitess) which allowed us to add TVF's and will allow us to add other potential modifications to our SQL dialect.
- Support for record metadata, including stuff like retracting records. This is important for further work on streaming support.
- Record serialization, which will make it possible to use disk based key-value state storage.