Merge "rearchitect reflection for batched performance" into main

diff --cc lib/sqlalchemy/dialects/postgresql/base.py
Simple merge

diff --cc lib/sqlalchemy/sql/schema.py
Simple merge

diff --cc lib/sqlalchemy/testing/assertions.py
Simple merge

diff --cc setup.cfg
Simple merge

diff --cc test/dialect/postgresql/test_reflection.py
Simple merge

diff --cc test/dialect/postgresql/test_types.py
Simple merge

diff --cc test/requirements.py
Simple merge