C
A doesn't work, I tested:
--- 803
CREATE FILE FORMAT ET_803 TYPE=CSV;
DESCRIBE FILE FORMAT ET_803;
ALTER FILE FORMAT ET_803 SET TYPE =JSON;
---File format type cannot be changed.
CREATE OR REPLACE FILE FORMAT ET_803 TYPE=JSON;
DESCRIBE FILE FORMAT ET_803;
DROP FILE FORMAT ET_803;
ALTER FILE FORMAT does not support the following actions:
- Changing the type (CSV, JSON, etc.) for the file format.
To make any of these changes, you must recreate the file format.
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