1 files changed, 8 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb
index fc201f8fb9..a8d2310035 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb
@@ -6,6 +6,7 @@ module ActiveRecord
       module OID # :nodoc:
         class Range < Type::Value # :nodoc:
           attr_reader :subtype, :type
+          delegate :user_input_in_time_zone, to: :subtype
 
           def initialize(subtype, type = :range)
             @subtype = subtype
@@ -18,7 +19,7 @@ module ActiveRecord
 
           def cast_value(value)
             return if value == 'empty'
-            return value if value.is_a?(::Range)
+            return value unless value.is_a?(::String)
 
             extracted = extract_bounds(value)
             from = type_cast_single extracted[:from]
@@ -46,6 +47,12 @@ module ActiveRecord
               other.type == type
           end
 
+          def map(value) # :nodoc:
+            new_begin = yield(value.begin)
+            new_end = yield(value.end)
+            ::Range.new(new_begin, new_end, value.exclude_end?)
+          end
+
           private
 
           def type_cast_single(value)