lib/Yucca/Component/Source/DatabaseSingleRow.php
public function remove(array $identifier, $shardingKey = null)
    {
        $this->schemaManager->remove($this->tableName, $identifier, $shardingKey);

        return $this;
    }
public function remove(array $identifier, $shardingKey = null)
    {
        $this->schemaManager->remove($this->tableName, $identifier, $shardingKey);

        return $this;
    }
@param array $identifier
@param null  $shardingKey

@return $this