This is a big release, including a lot of speed and stability improvements:
new features:
- data representation internally changed to columnar format, resulting in much smaller memory footprint and better performance (#238)
- added support for short/ushort CLR type (#235)
- breaking change: nullable columns are easier to define, doesn't try to guess the nullability anymore and gives full control to the user
improvements:
- BigDecimal type supports much bigger numbers (scale and precision) (#239)
- Writer was failing on some forward-only streams like GZipStream as they don't track stream position, now supports all kinds of non-seekable streams for write operations (#252)
- Decimal number format is now compatible with Impala (#243)
bug fixes
- Writer was failing on columns consisting of only null values (#222)
- When appending to file and using DateTime for one of your columns, subsequent appends would fail on schema validation (#247)
- Failure when deserialising Impala generated file with all nulls in a column (#240)