products (`product_id`, `title`, `body_html`, `vendor`, `product_type`, `created_at`, `handle`, `updated_at`, `published_at`, `template_suffix`, `published_scope`, `tags`)          VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)          ON DUPLICATE KEY UPDATE              product_id = VALUES(product_id),              title = VALUES(title),              body_html = VALUES(body_html),             vendor = VALUES(vendor),              product_type = VALUES(product_type),              created_at = VALUES(created_at),              handle = VALUES(handle),              updated_at = VALUES(updated_at),              published_at = VALUES(published_at),              template_suffix = VALUES(template_suffix),              published_scope = VALUES(published_scope),              tags = VALUES(tags)";      $mainProdQuery = $mysqli->prepare($mainProdQueryStmt); 