class ActiveRecord::ConnectionAdapters::MySQL::ExplainPrettyPrinter

This is an exercise in Ruby hyperrealism :).

2 rows in set (0.00 sec)
+----+-------------+-------+-------+---------------+---------+---------+-------+------+-------------+
| 1 | SIMPLE | posts | ALL | NULL | NULL | NULL | NULL | 1 | Using where |
| 1 | SIMPLE | users | const | PRIMARY | PRIMARY | 4 | const | 1 | |
+----+-------------+-------+-------+---------------+---------+---------+-------+------+-------------+
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
+----+-------------+-------+-------+---------------+---------+---------+-------+------+-------------+

MySQL shell:
Pretty prints the result of an EXPLAIN in a way that resembles the output of the
:nodoc:

def pp(result, elapsed)
  widths    = compute_column_widths(result)
  separator = build_separator(widths)
  pp = []
  pp << separator
  pp << build_cells(result.columns, widths)
  pp << separator
  result.rows.each do |row|
    pp << build_cells(row, widths)
  end
  pp << separator
  pp << build_footer(result.rows.length, elapsed)
  pp.join("\n") + "\n"
end