使用 Sphinx 更好地进行 MySQL 搜索

				
ALTER TABLE salaries
  DROP PRIMARY KEY,
  ADD UNIQUE emp_from (emp_no, from_date) ;
ALTER TABLE salaries
  ADD salaries_id INT NOT NULL AUTO_INCREMENT PRIMARY KEY FIRST ;
UPDATE salaries
  SET to_date="2038-01-01" WHERE to_date="9999-01-01";

				
SELECT *
  FROM employees.employees
  WHERE birth_date BETWEEN '1960-09-01' AND '1960-09-30'
    AND hire_date >= '1998-01-01';
38 rows in set (0.19 sec)

SELECT *
  FROM employees.employees eee JOIN employees.salaries sss
  ON sss.emp_no=eee.emp_no
  WHERE eee.first_name='Yucel'
    AND sss.salary>120000
    AND sss.from_date >= '2000-01-01';
5 rows in set (0.15 sec)

				
source employeesSource
{
  type = mysql
  sql_host = localhost
  sql_user = mysqluser
  sql_pass = mysqlpass
  sql_db = employees
  sql_query= SELECT \
    emp_no as id, \
    TO_DAYS(birth_date) AS birth_date_td, \
    first_name, \
    last_name, \
    gender, \
    TO_DAYS(hire_date) AS hire_date_td \
    FROM employees
  sql_attr_uint = birth_date_td
  sql_field_string = first_name
  sql_field_string = last_name
  sql_field_string = gender
  sql_attr_uint = hire_date_td
}

source employeesSalariesSource
{
  type = mysql
  sql_host = localhost
  sql_user = mysqluser
  sql_pass = mysqlpass
  sql_db = employees
  sql_query= SELECT \
    ss.salaries_id AS id, \
    ee.emp_no AS emp_no, \
    TO_DAYS(ee.birth_date) AS birth_date_td, \
    ee.first_name AS first_name, \
    ee.last_name AS last_name, \
    ee.gender AS gender, \
    TO_DAYS(ee.hire_date) AS hire_date_td, \
    ss.salary AS salary, \
    UNIX_TIMESTAMP(ss.from_date) AS from_date_ts, \
    UNIX_TIMESTAMP(ss.to_date) AS to_date_ts \
    FROM employees ee JOIN salaries ss \
    ON ss.emp_no=ee.emp_no
  sql_attr_uint = emp_no
  sql_attr_timestamp = birth_date_ts
  sql_field_string = first_name
  sql_field_string = last_name
  sql_field_string = gender
  sql_attr_uint = hire_date_td
  sql_attr_uint = salary
  sql_attr_timestamp = from_date_ts
  sql_attr_timestamp = to_date_ts
}

				
index employeesIndex
{
  type = plain
  source = employeesSource
  path = /home/fkereki/bin/sphinx/var/data/sphinxFilesEI
  charset_type = utf-8
  preopen = 1
}

index employeesSalariesIndex
{
  type = plain
  source = employeesSalariesSource
  path = /home/fkereki/bin/sphinx/var/data/sphinxFilesESI
  charset_type = utf-8
  preopen = 1
}

				
indexer
{
  mem_limit = 1024M
}

searchd
{
  listen = 127.0.0.1:9306:mysql41
  log = /home/fkereki/bin/sphinx/var/log/searchd.log
  query_log = /home/fkereki/bin/sphinx/var/log/query.log
  pid_file = /home/fkereki/bin/sphinx/var/log/searchd.pid
}

				
~/bin/sphinx/etc> ../bin/indexer --all
Sphinx 2.0.1-beta (r2792)
Copyright (c) 2001-2011, Andrew Aksyonoff
Copyright (c) 2008-2011, Sphinx Technologies Inc (http://sphinxsearch.com)

using config file './sphinx.conf'...
indexing index 'employeesSalariesIndex'...
collected 2844047 docs, 40.9 MB
sorted 8.5 Mhits, 100.0% done
total 2844047 docs, 40877736 bytes
total 24.842 sec, 1645464 bytes/sec, 114482.32 docs/sec
indexing index 'employeesIndex'...
collected 300024 docs, 4.3 MB
sorted 0.9 Mhits, 100.0% done
total 300024 docs, 4311224 bytes
total 0.914 sec, 4714945 bytes/sec, 328119.56 docs/sec
total 7 reads, 0.274 sec, 19695.2 kb/call avg, 39.2 msec/call avg
total 110 writes, 0.528 sec, 2351.0 kb/call avg, 4.8 msec/call avg

~/bin/sphinx/etc> ../bin/searchd
Sphinx 2.0.1-beta (r2792)
Copyright (c) 2001-2011, Andrew Aksyonoff
Copyright (c) 2008-2011, Sphinx Technologies Inc (http://sphinxsearch.com)

using config file './sphinx.conf'...
listening on 127.0.0.1:9306
precaching index 'employeesSalariesIndex'
precaching index 'employeesIndex'
precached 2 indexes in 0.124 sec

				
$bd0 = mysql_connect('localhost:3306', 'mysqluser','mysqlpass');
$bd1 = mysql_connect('localhost:9306');

echo "FIRST TEST ... SINGLE TABLE\n\n";

$td1 = to_days("1960-09-01");
$td2 = to_days("1960-09-30");
$td3 = to_days("1998-01-01");

do_time("test 1 - MySQL ", "SELECT * FROM employees.employees ".
  "WHERE birth_date BETWEEN '1960-09-01' AND '1960-09-30' ".
  "AND hire_date >= '1998-01-01'", $bd0);

do_time("test 1 - Sphinx", "SELECT * FROM employeesIndex ".
  "WHERE birth_date_td BETWEEN {$td1} AND {$td2} ".
  "AND hire_date_td >= {$td3} LIMIT 0,10000 ", $bd1);

echo "\nSECOND TEST ... JOIN\n\n";

$ts1 = mktime(0,0,0,1,1,2000);

do_time("test 2 - MySQL ", "SELECT * ".
  "FROM employees.employees eee JOIN employees.salaries sss ".
  "ON sss.emp_no=eee.emp_no ".
  "WHERE eee.first_name='Yucel' ".
  "AND sss.salary>120000 ".
  "AND sss.from_date >= '2000-01-01'", $bd0);

do_time("test 2 - Sphinx", "SELECT * FROM employeesSalariesIndex ".
  "WHERE MATCH('_cnnew1@first_name Yucel') ".
  "AND salary>120000 ".
  "AND from_date_ts>={$ts1} limit 0,10000 ", $bd1);

function to_days($date) {
  return 719528 + floor(strtotime($date)/(60*60*24));
}

function do_time($description, $sentence, $bd) {
  $m0 = microtime(true);
  $res= @mysql_query($sentence, $bd);
  $m1 = microtime(true);
  $nr = mysql_num_rows($res);
  echo $description." ".$nr." rows in ".
    sprintf("%6.4f", $m1-$m0)." secs\n";
}

				
~/bin/sphinx/etc> php test.php
FIRST TEST ... SINGLE TABLE

test 1 - MySQL  38 rows in 0.1912 secs
test 1 - Sphinx 38 rows in 0.0157 secs

SECOND TEST ... JOIN

test 2 - MySQL  5 rows in 0.1532 secs
test 2 - Sphinx 5 rows in 0.0020 secs