benchmarks for conditional existance -- sql

-- phpMyAdmin SQL Dump
-- version 3.3.9
-- http://www.phpmyadmin.net
--
-- Host: localhost
-- Generation Time: Jun 22, 2011 at 01:53 PM
-- Server version: 5.5.8
-- PHP Version: 5.3.5

SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO";

--
-- Database: `test`
--

-- --------------------------------------------------------

--
-- Table structure for table `bar`
--

CREATE TABLE IF NOT EXISTS `bar` (
  `a` int(10) unsigned NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;

--
-- Dumping data for table `bar`
--


-- --------------------------------------------------------

--
-- Table structure for table `bat`
--

CREATE TABLE IF NOT EXISTS `bat` (
  `f` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`f`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;

--
-- Dumping data for table `bat`
--


-- --------------------------------------------------------

--
-- Table structure for table `baz`
--

CREATE TABLE IF NOT EXISTS `baz` (
  `f` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`f`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;

--
-- Dumping data for table `baz`
--