@eriodega please read my last answer above.

The IDENTIFIER(:param) works fine when you use it in some types of queries (like SELECT), but it doesn't work in other types of statements (e.g. INSERT INTO IDENTIFIER(:mytable) ...).

Here's a reproducer that demonstrates the issue is still present in the latest version of spark:
https://gist.github.com/jhrcek/49386004a9a47172649158af288106f4