452f41df8d
Speeding up sql queries
...
Searching for "DATE_ADD(date_add, INTERVAL 30 MINUTE) > now" needs for every line to add 30 minutes to the date. but it is the same operation as comparing "date_add > (now - 30 minutes).
It is faster because there is no DATE_ADD calculation.
The problem:
By profiling speed of my shop, this query appeared after about 3 months always as the absolute slowest query of the shop, needing about 15 to 30 ms to perform, because I have now nearly 700 connections to my shop (and it then browses the 700 lines)
A solution:
Removing DATE_ADD MySql function and using date() and time() functions of php for calculating only once the 30 min. difference.
Using this solution takes it down again to 0.8 to 1.3 ms.
I guess it is the same in case of bots (could be even worse as they can make thousands of connections).
2013-09-13 10:05:30 +02:00
332d68c7ec
[-] MO : Statsdata, exception on duplicate entry
2013-09-10 11:08:57 +02:00
989dafce21
[*] FO : a few more SQL improvements
2013-07-19 11:29:18 +02:00
60671ab46b
[-] FO : cut long referrers in order to avoid a crash #PSCFV-7775
2013-02-21 16:19:10 +01:00
3d456b8c08
// small fix
2013-02-21 15:24:33 +01:00
064ba453e6
// Welcome 2013
2013-01-04 11:19:03 +01:00
a1db83ef41
//remove svn keyword @version Release: $
2012-11-22 11:57:40 +01:00
779cf350af
// Revert Revision 17884 : #PSCFV-5017 : update bad licenses in all files
2012-10-17 09:29:43 +00:00
046b51ab99
// #PSCFV-5017 : update bad licenses in all files
2012-10-17 06:18:59 +00:00
49869aaaaf
// MERGE product_multistore branch : product fields are now editable per shop
2012-04-17 13:32:12 +00:00
8f0257fc87
// Replace shop->addSqlRestriction() and shop->addSqlRestrictionOnLang() by static versions
2012-02-27 12:15:30 +00:00
14e6929565
// Welcome 2012²
2012-02-23 16:33:10 +00:00
91aae3e665
// Improve multishop API
2012-02-23 15:39:44 +00:00
587a927e76
[*] Classes : Db::autoExecute() call are now replaced by Db::insert() or Db::update()
2012-01-23 17:41:02 +00:00
449113c694
[-] BO : #PSTEST-243 : update date_add for customer connections
2012-01-02 09:27:20 +00:00
1506dc39b3
// Format definitions
2011-12-13 13:41:54 +00:00
48baf36558
[*] Classes: Remove $fieldsRequired, $fieldsSize and $fieldsValidate (and lang properties) properties, use $definition instead
2011-12-12 18:10:38 +00:00
d3a24b8622
// Remove $table and $identifier property from all classes, and add static $definition instead
2011-12-05 13:56:03 +00:00
201cb34a4d
// Some fix on objectModel children classes (fields not valid, etc.)
2011-11-09 12:16:37 +00:00
e6f45e54a6
// Replace shop->sqlAsso(), shop->sqlLang() and shop->sqlRestriction() with shop->addSqlAssociation(), shop->addSqlRestrictionOnLang() and shop->addSqlRestriction()
2011-10-17 09:46:08 +00:00
9510337b1d
// Remove bad _SQL_USE_SLAVE_ uses + normalize Db->executeS(), Db->execute() and Db->numRows() names
2011-10-10 12:18:56 +00:00
0b28aa8f72
// Fix #PSFV-48
2011-08-11 14:42:31 +00:00
55ee922b16
// Context part 22
2011-07-27 09:01:00 +00:00
3f9a9e41d7
// id_shop on cart product (for links) + change Shop::sqlAsso() + share_order
2011-07-22 08:57:51 +00:00
02a738dce1
// Context part 15
2011-07-19 16:17:14 +00:00
290e1f1f87
2011-07-19 13:55:53 +00:00
2d77925e7d
// Refactoring of shop class with new context
2011-07-12 16:28:20 +00:00
8fc7f11014
2011-07-06 10:54:11 +00:00
d1a13007b9
2011-07-06 10:10:43 +00:00
05a58f53e6
// 1.5 branche creation
2011-04-12 18:24:40 +00:00
zimmi1