Re: Bug #500: Cannot create View and Problems With the UNION clause

pgsql-bugs@postgresql.org writes:
>  Why doesnt working the following SQL command ?
> database=# SELECT EXISTS (SELECT 1 UNION SELECT 2);
> ERROR:  parser: parse error at or near "union"

You're using an old release of Postgres.  Update.  (7.1.3 is current.)

I don't know about your other complaint; you didn't give enough detail.

            regards, tom lane