Hello @H369199,
By default, when exporting using any of Paxata's HDFS Connectors, if the file name and path match and existing file, the Paxata export will overwrite/replace the existing file.
Appending exported data to existing HDFS data is not currently supported. Do you have a use case that requires this? We generally think of appending as behavior common to databases, but not files.
If you would prefer to talk more in-depth on this topic and go into more detail on your use case, please reach out to your Customer Success representative to set up a call :smile: