src/QueryBuilder/QueryBuilder.php
public function addSelect(string $expression, ...$args): self
	{
		if (!is_string($expression)) {
			throw new InvalidArgumentException('Select expression has to be a string.');
		}
		$this->dirty();
		$this->select[] = $expression;
		$this->pushArgs('select', $args);
		return $this;
	}
public function addSelect(string $expression, ...$args): self
	{
		if (!is_string($expression)) {
			throw new InvalidArgumentException('Select expression has to be a string.');
		}
		$this->dirty();
		$this->select[] = $expression;
		$this->pushArgs('select', $args);
		return $this;
	}
Adds expression to SELECT clause.