Hi @Dhruv-22 

We understand that you are facing the following error when using REPLACE TABLE AS SELECT  on the Parquet Table but at this moment the REPLACE TABLE AS SELECT operation you're trying to perform is not supported for Parquet tables.

According to our documentation, the REPLACE clause is only supported for Delta Lake tables. If you're working with Parquet, you might need to consider converting your tables to Delta format to use this feature. 

Please refer to this document: https://docs.databricks.com/en/sql/language-manual/sql-ref-syntax-ddl-create-table-using.html#:~:tex...

Please let me know if this helps and leave a like if this helps, followups are appreciated.
Kudos
Ayushi