Hi, 

Does anyone know if its safe to use the update + from syntax on version 14.10? 
There is no documentation and no mention in "what news",  however the syntax below works! 

create temp table tp1 ( cod int , nome char(10)) with no log ;

create temp table tp2 ( cod int , nome char(10)) with no log ;

insert into tp1 select tabid, tabname from systables ;

insert into tp2 select tabid, '' from systables ;

select * from tp2 where cod = 100

update tp1

set nome = tp2.nome

from tp2

where tp2.cod = tp1.cod

  and tp2.cod = 100

create temp table tp1 ( cod int , nome char(10)) with no log ;
create temp table tp2 ( cod int , nome char(10)) with no log ;

insert into tp1 select tabid, tabname from systables ;
insert into tp2 select tabid, 'test_string' from systables ;

select * from tp1 where cod = 100;

update tp1
   set nome = -- (select
              tp2.nome
                  from tp2
 where tp2.cod = tp1.cod
   and tp2.cod = 100
              -- )
;

select * from tp1 where cod = 100;
​

update tp1

set nome = tp2.nome

from tp2

where tp2.cod = tp1.cod

  and tp2.cod = 100

create temp table tp1 ( cod int , nome char(10)) with no log ;create temp table tp2 ( cod int , nome char(10)) with no log ;insert into tp1 select tabid, tabname from systables ;insert into tp2 select tabid, 'test_string' from systables ;select * from tp1 where cod = 100;update tp1   set nome = -- (select              tp2.nome                  from tp2 where tp2.cod = tp1.cod   and tp2.cod = 100              -- );select * from tp1 where cod = 100;​