Python-сообщество

class TableName(models.Model):
	name = models.CharField(max_length=100)
#
class TableAbstract(models.Model):
	...
	class Meta:
        	abstract = True

from app_templ.models import TableAbstract
class Table1(TableAbstract)
	...

from app_templ.models import TableAbstract
class Table2(TableAbstract)
	...

ALTER TABLE board_group ADD COLUMN holes bigint[];
INSERT INTO board_group values (-9223372036854775808,0,0,0,0,-9223372036854775808);
INSERT INTO tree_size values ('board_group',6,1624);
CREATE TRIGGER after_upd
  AFTER UPDATE
  ON board_group
  FOR EACH ROW
  EXECUTE PROCEDURE tree_after_upd_parent();
CREATE TRIGGER before_del
  BEFORE DELETE
  ON board_group
  FOR EACH ROW
  EXECUTE PROCEDURE tree_before_del_row();
CREATE TRIGGER before_new
  BEFORE INSERT
  ON board_group
  FOR EACH ROW
  EXECUTE PROCEDURE tree_before_new_id();