Hey @Dhruv-22  , yes, this is how I understand your problem. You have a folder perhaps with delta files and try to overwrite it with parquet files? I'm not familiar with parquet but I believe you need to delete parquet files each time before you create the table in the same location. With delta like you said, its not neccessary anymore. Delta keeps each file and when you do a action like overwrite, merge or just add data to the table. Delta creates a new file in these cases in order to maintain history. Then you can use the time travel feature to move back to a prior version of the table. 

View solution in original post