mysql2/benchmark/query_with_mysql_casting.rb

# encoding: UTF-8
$LOAD_PATH.unshift File.expand_path(File.dirname(__FILE__) + '/..')

require 'rubygems'
require 'benchmark'
require 'mysql'
require 'mysql2_ext'
require 'do_mysql'

number_of = 100
database = 'test'
sql = "SELECT * FROM mysql2_test LIMIT 100"

class Mysql
  include Enumerable
end

def mysql_cast(type, value)
  case type
    when Mysql::Field::TYPE_NULL
      nil
    when Mysql::Field::TYPE_TINY, Mysql::Field::TYPE_SHORT, Mysql::Field::TYPE_LONG,
         Mysql::Field::TYPE_INT24, Mysql::Field::TYPE_LONGLONG, Mysql::Field::TYPE_YEAR
      value.to_i
    when Mysql::Field::TYPE_DECIMAL, Mysql::Field::TYPE_NEWDECIMAL
      BigDecimal.new(value)
    when Mysql::Field::TYPE_DOUBLE, Mysql::Field::TYPE_FLOAT
      value.to_f
    when Mysql::Field::TYPE_DATE
      Date.parse(value)
    when Mysql::Field::TYPE_TIME, Mysql::Field::TYPE_DATETIME, Mysql::Field::TYPE_TIMESTAMP
      Time.parse(value)
    when Mysql::Field::TYPE_BLOB, Mysql::Field::TYPE_BIT, Mysql::Field::TYPE_STRING,
         Mysql::Field::TYPE_VAR_STRING, Mysql::Field::TYPE_CHAR, Mysql::Field::TYPE_SET
         Mysql::Field::TYPE_ENUM
      value
    else
      value
  end
end

Benchmark.bmbm do |x|
  mysql2 = Mysql2::Client.new(:host => "localhost", :username => "root")
  mysql2.query "USE #{database}"
  x.report do
    puts "Mysql2"
    number_of.times do
      mysql2_result = mysql2.query sql
      mysql2_result.each(:symbolize_keys => true) do |res|
        # puts res.inspect
      end
    end
  end

  mysql = Mysql.new("localhost", "root")
  mysql.query "USE #{database}"
  x.report do
    puts "Mysql"
    number_of.times do
      mysql_result = mysql.query sql
      fields = mysql_result.fetch_fields
      mysql_result.each do |row|
        row_hash = {}
        row.each_with_index do |f, j|
          row_hash[fields[j].name.to_sym] = mysql_cast(fields[j].type, row[j])
        end
        # puts row_hash.inspect
      end
    end
  end

  do_mysql = DataObjects::Connection.new("mysql://localhost/#{database}")
  command = DataObjects::Mysql::Command.new do_mysql, sql
  x.report do
    puts "do_mysql"
    number_of.times do
      do_result = command.execute_reader
      do_result.each do |res|
        # puts res.inspect
      end
    end
  end
end