Вставка строки не в конец таблицы

CREATE OR REPLACE FUNCTION public.update_from_pred(nextid INTEGER)
  RETURNS INTEGER AS
$BODY$
BEGIN
    UPDATE domains SET (level, name)= 
    (SELECT level, name FROM domains AS dms WHERE id=nextid-1)
    WHERE id=nextid;
    RETURN 1;
END;
$BODY$
LANGUAGE plpgsql;

CREATE OR REPLACE FUNCTION public.shift_rows(
    i_min INTEGER,
    i_max INTEGER)
  RETURNS void AS
$BODY$
BEGIN
FOR i IN REVERSE i_max..i_min LOOP
    PERFORM update_from_pred(i);
END LOOP;
RETURN;
END;
$BODY$

CREATE OR REPLACE FUNCTION except_col(tableName text, col text)
  RETURNS text AS
$BODY$
BEGIN
    RETURN ARRAY_TO_STRING(ARRAY(SELECT COLUMN_NAME::VARCHAR(50)
    FROM INFORMATION_SCHEMA.COLUMNS
    WHERE TABLE_NAME = tableName AND COLUMN_NAME NOT IN (col) AND TABLE_SCHEMA NOT IN ('information_schema')
    ORDER BY ORDINAL_POSITION), ', ');
END
$BODY$
  LANGUAGE plpgsql VOLATILE
  COST 100;
 
CREATE OR REPLACE FUNCTION update_from_pred(tableName TEXT, nextid INTEGER)
  RETURNS text AS
$BODY$
DECLARE
    li TEXT;
    se TEXT;
    sd TEXT;
    up TEXT;
BEGIN
    li = except_col(tableName, 'id');
    se = 'SELECT ' || li || ' FROM ' || tableName || ' WHERE id = ' || (nextid -1);
    up = 'UPDATE ' || tableName || ' SET (' || li || ') = (' || se || ') WHERE id = ' || nextid;
    RAISE NOTICE 'upd = %', up;
    EXECUTE up;
    RETURN 'Ok';
END;
$BODY$
  LANGUAGE plpgsql VOLATILE
  COST 100;
 
CREATE OR REPLACE FUNCTION shift_rows(tableName TEXT, i1 INTEGER, i2 INTEGER)
  RETURNS void AS
$BODY$
BEGIN
FOR i IN REVERSE i2..i1 LOOP
    PERFORM update_from_pred(tableName, i);
END LOOP;
RETURN;
END;
$BODY$
  LANGUAGE plpgsql VOLATILE
  COST 100;