Returns select query hash for caching.
| public getSelectQueryHash ( $columns = NULL ) : string | ||
| 리턴 | string | |
/**
* Returns object specific cache key dependent on query parameters
* Used e.g. for reference memory caching
* @return string
*/
protected function getSpecificCacheKey()
{
if ($this->specificCacheKey) {
return $this->specificCacheKey;
}
return $this->specificCacheKey = $this->sqlBuilder->getSelectQueryHash($this->getPreviousAccessedColumns());
}