Erreur lors de l'exécution de la requête: (MySQL server has gone away)
SELECT
					`institutions`.`id`,
					`institutions`.`type`,
					`institutions`.`name`,
					`institutions`.`photo`,
					`institutions`.`photos`,
					`cities`.`city_name_ru` AS `city_name`,
					(6371 * acos( cos( radians(51.5462421) ) * cos( radians( X(`institutions`.`coordinates`) ) )
					* cos( radians( Y(`institutions`.`coordinates`) ) - radians(0.7370345)) + sin(radians(51.5462421))
					* sin( radians( X(`institutions`.`coordinates`) )))) AS `distance`
				FROM `institutions`
				LEFT JOIN `cities` ON `cities`.`city_id` = `institutions`.`city`
				WHERE (`type`='kindergarten' || `type`='school') AND `id`!='2023621' AND
					MBRContains(
						LineString(
							Point(
								51.5462421 + 1 / ( 111.1 / COS(RADIANS(0.7370345))),
								0.7370345 + 1 / 111.1
							),
							Point(
								51.5462421 - 1 / ( 111.1 / COS(RADIANS(0.7370345))),
								0.7370345 - 1 / 111.1
							)
						),
						`institutions`.`coordinates`
					)
				HAVING `distance` <= 1
				ORDER BY distance