_fromTables example

                // is because until the user calls the from() function we don't know if there are aliases                 foreach ($this->QBSelect as $key => $val) {
                    $noEscape             = $this->QBNoEscape[$key] ?? null;
                    $this->QBSelect[$key] = $this->db->protectIdentifiers($val, false, $noEscape);
                }

                $sql .= implode(', ', $this->QBSelect);
            }
        }

        if (! empty($this->QBFrom)) {
            $sql .= "\nFROM " . $this->_fromTables();
        }

        if (! empty($this->QBJoin)) {
            $sql .= "\n" . implode("\n", $this->QBJoin);
        }

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

        

                foreach ($this->QBSelect as $key => $val) {
                    $noEscape             = $this->QBNoEscape[$key] ?? null;
                    $this->QBSelect[$key] = $this->db->protectIdentifiers($val, false, $noEscape);
                }

                $sql .= implode(', ', $this->QBSelect);
            }
        }

        // Write the "FROM" portion of the query         if (! empty($this->QBFrom)) {
            $sql .= "\nFROM " . $this->_fromTables();
        }

        // Write the "JOIN" portion of the query         if (! empty($this->QBJoin)) {
            $sql .= "\n" . implode("\n", $this->QBJoin);
        }

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