Don't use Active Support where we don't need to

activerecord/lib/active_record/connection_adapters/mysql_adapter.rb

@@ -491,7 +491,7 @@ def exec_stmt(sql, name, binds)
           end
 
           begin
-            stmt.execute(*type_casted_binds.map(&:second))
+            stmt.execute(*type_casted_binds.map { |_, val| val })
           rescue Mysql::Error => e
             # Older versions of MySQL leave the prepared statement in a bad
             # place when an error occurs. To support older mysql versions, we

activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb

@@ -788,7 +788,7 @@ def exec_cache(sql, name, binds)
           }
 
           log(sql, name, type_casted_binds, stmt_key) do
-            @connection.send_query_prepared(stmt_key, type_casted_binds.map(&:second))
+            @connection.send_query_prepared(stmt_key, type_casted_binds.map { |_, val| val })
             @connection.block
             @connection.get_last_result
           end

activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb

@@ -310,7 +310,7 @@ def exec_query(sql, name = nil, binds = [])
             stmt = cache[:stmt]
             cols = cache[:cols] ||= stmt.columns
             stmt.reset!
-            stmt.bind_params type_casted_binds.map(&:second)
+            stmt.bind_params type_casted_binds.map { |_, val| val }
           end
 
           ActiveRecord::Result.new(cols, stmt.to_a)