插入表格

Question

I want always to insert into mylog table regardless whether user exists in myusers table or not, so I'm using:

insert into mylog (c1,c2)
  select t.userx, coalesce(ig.webuser,'X') from (
    select 1,1,'username'::text as userx
  ) as t
  left join myusers ig on t.userx = ig.webuser
;

Is there shorter query which does same thing?

Answer 1

The statement

INSERT INTO mylog (c1,c2) 
VALUES('username', coalesce((SELECT webuser 
                             FROM myusers 
                             WHERE webuser='username'),'X'));

would do the same but shorter. imo your statement makes no sense. You always log 'username','X' or 'username','username'