How to explicitly cast type of array literal in sqlalchemy using postgresql?

Question

After attempting to cast a literal arrays type via cast, type_coerce, and type_ and not having any success thought I would ask.

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Answer 1

Casting is very straightforward:

from sqlalchemy.dialects.postgresql import array, ARRAY

cast(array([]), ARRAY(Integer))

Without seeing what you've tried, I can only speculate that you tried to cast to array(Integer) instead of ARRAY(Integer).