documentation/_distinct_renderer_8php_source.html

 <?php
 namespace Magento\Framework\DB\Select;

 use Magento\Framework\DB\Select;

 class DistinctRenderer implements RendererInterface
 {
     public function render(Select $select, $sql = '')
     {
         if ($select->getPart(Select::DISTINCT)) {
             $sql .= ' ' . Select::SQL_DISTINCT  . ' ';
         }
         return $sql;
     }
 }
Magento\Framework\DB\Select
Definition: Select.php:33

Magento\Framework\DB\Select\DistinctRenderer\render
render(Select $select, $sql='')
Definition: DistinctRenderer.php:22

Magento\Framework\DB\Select\RendererInterface
Definition: RendererInterface.php:14

$select
$select
Definition: catalog_rule_10_off_not_logged_rollback.php:14

Zend_Db_Select\DISTINCT
const DISTINCT
Definition: Select.php:47

Magento\Framework\DB\Select\DistinctRenderer
Definition: DistinctRenderer.php:13

Magento\Framework\DB\Select
Definition: ColumnsRenderer.php:6

Zend_Db_Select\SQL_DISTINCT
const SQL_DISTINCT
Definition: Select.php:72