Merge "Add value-level hooks for SQL type detection; apply to Range" into main

diff --cc lib/sqlalchemy/dialects/postgresql/ranges.py
index b1f418e415ba27901925b05c21b94fb6baad6b32,6f13d462ad28349f997f9f457a01b2a5bb33412c..e772777bf31c5090b065b93d639f3272dce8abdf
--- 1/lib/sqlalchemy/dialects/postgresql/ranges.py
--- 2/lib/sqlalchemy/dialects/postgresql/ranges.py
+++ b/lib/sqlalchemy/dialects/postgresql/ranges.py
@@@ -82,8 -83,12 +83,12 @@@ class Range(Generic[_T])
              )
  
      def __bool__(self) -> bool:
 -        return self.empty
 +        return not self.empty
  
+     @property
+     def __sa_type_engine__(self):
+         return AbstractRange()
+ 
      def _contains_value(self, value: _T) -> bool:
          "Check whether this range contains the given `value`."
  

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