unionInjection example

$sql .= $this->compileWhereHaving('QBWhere')
            . $this->compileGroupBy()
            . $this->compileWhereHaving('QBHaving')
            . $this->compileOrderBy(); // ORDER BY
        // LIMIT         if ($this->QBLimit) {
            $sql = $this->_limit($sql . "\n");
        }

        return $this->unionInjection($sql);
    }

    /** * Compiles the select statement based on the other functions called * and runs the query * * @return ResultInterface */
    public function get(?int $limit = null, int $offset = 0, bool $reset = true)
    {
        if ($limit !== null) {
            

        $sql .= $this->compileWhereHaving('QBWhere')
            . $this->compileGroupBy()
            . $this->compileWhereHaving('QBHaving')
            . $this->compileOrderBy();

        if ($this->QBLimit) {
            $sql = $this->_limit($sql . "\n");
        }

        return $this->unionInjection($sql);
    }

    /** * Checks if the ignore option is supported by * the Database Driver for the specific statement. * * @return string */
    protected function compileIgnore(string $statement)
    {
        if ($this->QBIgnore && isset($this->supportedIgnoreStatements[$statement])) {