SaveMode : string
Cases
- Append = 'append'
- If data sink already exists, data will be appended, this solution might cause data duplication since it's not check if given rows already existed.
- ExceptionIfExists = 'exception_if_exists'
- If data sink already exists error will be thrown.
- Ignore = 'ignore'
- If data sink already exists, writing will be skipped.
- Overwrite = 'overwrite'
- If data sink already exists, it will be removed and written again.
Cases
Append
If data sink already exists, data will be appended, this solution might cause data duplication since it's not check if given rows already existed.
ExceptionIfExists
If data sink already exists error will be thrown.
Ignore
If data sink already exists, writing will be skipped.
Overwrite
If data sink already exists, it will be removed and written again.