adds trailing +s to the output of EXPLAIN for MySQL

activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb

@@ -282,8 +282,8 @@ module ActiveRecord
         end
 
         def build_separator(widths)
-          # Each cell has one char of padding at both sides, that's why we add 2.
-          '+' + widths.map {|w| '-' * (w + 2)}.join('+')
+          padding = 1
+          '+' + widths.map {|w| '-' * (w + (padding*2))}.join('+') + '+'
         end
 
         def build_cells(items, widths)
@@ -364,7 +364,6 @@ module ActiveRecord
       # these, we must use a subquery. However, MySQL is too stupid to create a
       # temporary table for this automatically, so we have to give it some prompting
       # in the form of a subsubquery. Ugh!
-
       def join_to_update(update, select) #:nodoc:
         if select.limit || select.offset || select.orders.any?
           subsubselect = select.clone

railties/guides/source/active_record_querying.textile

@@ -1324,17 +1324,17 @@ User.where(:id => 1).includes(:posts).explain
 yields
 
 <plain>
-+----+-------------+-------+-------+---------------+---------+---------+-------+------+-------
++----+-------------+-------+-------+---------------+---------+---------+-------+------+-------+
 | id | select_type | table | type  | possible_keys | key     | key_len | ref   | rows | Extra |
-+----+-------------+-------+-------+---------------+---------+---------+-------+------+-------
++----+-------------+-------+-------+---------------+---------+---------+-------+------+-------+
 |  1 | SIMPLE      | users | const | PRIMARY       | PRIMARY | 4       | const |    1 |       |
-+----+-------------+-------+-------+---------------+---------+---------+-------+------+-------
++----+-------------+-------+-------+---------------+---------+---------+-------+------+-------+
 1 row in set (0.00 sec)
-+----+-------------+-------+------+---------------+------+---------+------+------+-------------
++----+-------------+-------+------+---------------+------+---------+------+------+-------------+
 | id | select_type | table | type | possible_keys | key  | key_len | ref  | rows | Extra       |
-+----+-------------+-------+------+---------------+------+---------+------+------+-------------
++----+-------------+-------+------+---------------+------+---------+------+------+-------------+
 |  1 | SIMPLE      | posts | ALL  | NULL          | NULL | NULL    | NULL |    1 | Using where |
-+----+-------------+-------+------+---------------+------+---------+------+------+-------------
++----+-------------+-------+------+---------------+------+---------+------+------+-------------+
 1 row in set (0.00 sec)
 </plain>