1 files changed, 10 insertions, 6 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
index 771a150eae..adeb57d913 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -148,10 +148,14 @@ module ActiveRecord
         @oid_type.type_cast value
       end
 
+      def accessor
+        @oid_type.accessor
+      end
+
       private
 
         def has_default_function?(default_value, default)
-          !default_value && (%r{\w+(.*)} === default)
+          !default_value && (%r{\w+\(.*\)} === default)
         end
 
         def extract_limit(sql_type)
@@ -627,7 +631,6 @@ module ActiveRecord
         true
       end
 
-      # Returns true.
       def supports_explain?
         true
       end
@@ -779,11 +782,12 @@ module ActiveRecord
 
         def exec_cache(sql, name, binds)
           stmt_key = prepare_statement(sql)
+          type_casted_binds = binds.map { |col, val|
+            [col, type_cast(val, col)]
+          }
 
-          log(sql, name, binds, stmt_key) do
-            @connection.send_query_prepared(stmt_key, binds.map { |col, val|
-              type_cast(val, col)
-            })
+          log(sql, name, type_casted_binds, stmt_key) do
+            @connection.send_query_prepared(stmt_key, type_casted_binds.map { |_, val| val })
             @connection.block
             @connection.get_last_result
           end