SELECT
		pd.*
		,pa.avalaible_gen
		,pa.price_torg
		,IF (@rn % 12 = 0, @gn:=@gn+1, @gn) AS 'group_num'
		,@rn:=@rn+1
	FROM migrate.PA_DR pd
	LEFT JOIN prices_all pa ON pd.pd_pa_id = pa.id
	LEFT JOIN seo_available_razdel sr ON pd.pd_dr_id = sr.dok_razdel_id
	WHERE 1
		AND pa.price_torg >= sr.min_available_price
		AND pd.pd_dr_id = 242
		AND pa.avalaible_gen = 1
	ORDER BY pa.price_torg ASC