Created
March 14, 2016 10:55
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SQL No Cache Support for Varien DB select
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diff --git a/lib/Varien/Db/Select.php b/lib/Varien/Db/Select.php | |
index 4af0818..e7c01c5 100755 | |
--- a/lib/Varien/Db/Select.php | |
+++ b/lib/Varien/Db/Select.php | |
@@ -59,6 +59,12 @@ class Varien_Db_Select extends Zend_Db_Select | |
const SQL_STRAIGHT_JOIN = 'STRAIGHT_JOIN'; | |
/** | |
+ * define callback for rendering sql no cache support*** | |
+ */ | |
+ const SQL_NO_CACHE = 'sqlNoCache'; | |
+ | |
+ | |
+ /** | |
* Class constructor | |
* Add straight join support | |
* | |
@@ -70,6 +76,11 @@ class Varien_Db_Select extends Zend_Db_Select | |
self::$_partsInit = array(self::STRAIGHT_JOIN => false) + self::$_partsInit; | |
} | |
+ //extend parts within SQL_NO_CACHE support | |
+ if (false === isset(self::$_partsInit[self::SQL_NO_CACHE])) { | |
+ self::$_partsInit = array(self::SQL_NO_CACHE => false) + self::$_partsInit; | |
+ } | |
+ | |
parent::__construct($adapter); | |
} | |
@@ -471,4 +482,29 @@ class Varien_Db_Select extends Zend_Db_Select | |
$this->where($exists); | |
return $this; | |
} | |
+ | |
+ /** | |
+ * add SQL_NO_CACHE to bypass querycache usage | |
+ * | |
+ * @param bool $flag | |
+ * @return Varien_Db_Select | |
+ */ | |
+ public function sqlNoCache($flag = true) | |
+ { | |
+ $this->_parts[self::SQL_NO_CACHE] = (bool)$flag; | |
+ return $this; | |
+ } | |
+ /** | |
+ * render SQL_NO_CACHE to bypass querycache usage | |
+ * | |
+ * @param string $sql SQL query | |
+ * @return string | |
+ */ | |
+ protected function _renderSqlNoCache($sql) | |
+ { | |
+ if ($this->_parts[self::SQL_NO_CACHE]) { | |
+ $sql .= ' SQL_NO_CACHE'; | |
+ } | |
+ return $sql; | |
+ } | |
} |
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Example
/** @var Varien_Db_Select $select */
$collection->getSelect()->sqlNoCache(true);
SELECT SQL_NO_CACHE * FROM
catalog_product_flat_1
ASe