Using write.format with parquet

%scala
df.write
  .format("parquet")
  .mode("append")
  .option("path", "s3a://bucket/destination")
  .save()
copy

Using write.parquet

%scala
df.write
  .mode("append")
  .parquet("s3a://bucket/destination")
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Using saveAsTable with parquet

%scala
df.write
  .mode("append")
  .option("path", "s3a://bucket/destination")
  .save("s3a://bucket/destination")
copy