class ActiveRecord::ConnectionAdapters::SQLite3::ExplainPrettyPrinter

0|1|1|SCAN TABLE posts (~100000 rows)
0|0|0|SEARCH TABLE users USING INTEGER PRIMARY KEY (rowid=?) (~1 rows)

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

def pp(result)
  result.rows.map do |row|
    row.join("|")
  end.join("\n") + "\n"
end