What formats are allowable for date formats in PostgreSQL? This question allows multiple answers.1 point'ddd-YYYY' such as '365-2022' 'dd-Mon-YYYY' such as '01-Jan-2022' 'yyyy-mm-dd' such as '2022-01-01' 'YYYY-ddd' such as '2022-365'

In PostgreSQL, the allowable date formats are:

1. 'YYYY-MM-DD' such as '2022-01-01': This is the ISO Date format which is widely used in PostgreSQL. It is the most common format where 'YYYY' represents the 4-digit year, 'MM' represents the 2-digit month, and 'DD' represents the 2-digit day.

2. 'DD-Mon-YYYY' such as '01-Jan-2022': This format uses 2-digit day, 3-character month abbreviation, and 4-digit year. The month is case-insensitive.

The formats 'ddd-YYYY' such as '365-2022' and 'YYYY-ddd' such as '2022-365' are not standard date formats in PostgreSQL. The 'ddd' represents the day of the year, which is a number between 1 and 366. PostgreSQL does not support this format for date input.

So, the correct answers are 'YYYY-MM-DD' and 'DD-Mon-YYYY'.