Right now, it is up to the source implementation to decide what to do. I
think path-based tables (with no metastore component) treat an append as an
implicit create.
If you're thinking that relying on sources to interpret SaveMode is bad for
consistent behavior, I agree. That's why the community
Hi,
For SaveMode.Append, the doc
https://spark.apache.org/docs/latest/sql-data-sources-load-save-functions.html#save-modes
says
*When saving a DataFrame to a data source, if data/table already exists,
contents of the DataFrame are expected to be appended to existing data*
However it does not
