system/Database/Query.php
public function swapPrefix(string $orig, string $swap)
	{
		$sql = empty($this->finalQueryString) ? $this->originalQueryString : $this->finalQueryString;

		$this->finalQueryString = preg_replace('/(\W)' . $orig . '(\S+?)/', '\\1' . $swap . '\\2', $sql);

		return $this;
	}
public function swapPrefix(string $orig, string $swap)
	{
		$sql = empty($this->finalQueryString) ? $this->originalQueryString : $this->finalQueryString;

		$this->finalQueryString = preg_replace('/(\W)' . $orig . '(\S+?)/', '\\1' . $swap . '\\2', $sql);

		return $this;
	}
Swaps out one table prefix for a new one.

@param string $orig
@param string $swap

@return $this