3.1.1
General
- Transformer add column's basic operation
- Use prestosql's hadoop and hive jars instead of apache's
- various misc codes optimize
dbffilereader
- remove supported for reading compressed dbf file
jsonreader
- fixed parse non-string type value
dbffilewriter
- fixed boolean type writing error
hdfswriter
- Use keyword
parquest
indicates support parquet format, old keywordpar
is not used