Re: [SQL] creating variable views

2001-07-07 Thread Tom Lane
"Josh Berkus" <[EMAIL PROTECTED]> writes: >> I don't understand the distinction you're trying to make here. In >> general, a view column that is implemented as a function will give >> the >> optimizer headaches if you refer to it in WHERE --- the simplicity or >> complexity of the function has go

Re: [SQL] creating variable views

2001-07-07 Thread Josh Berkus
Tom, > I don't understand the distinction you're trying to make here. In > general, a view column that is implemented as a function will give > the > optimizer headaches if you refer to it in WHERE --- the simplicity or > complexity of the function has got nothing to do with that AFAICS. OK. I

Re: [SQL] creating variable views

2001-07-07 Thread Tom Lane
"Josh Berkus" <[EMAIL PROTECTED]> writes: > All this function does is format output, rather than perform any fancy > manipulation. I find that the Postgres view optimizer has no trouble > with such functions. > More complex functions, like qf_calc_next_invoice_date(VARCHAR) which > calculates a c

Re: [SQL] creating variable views

2001-07-07 Thread Tom Lane
Dado Feigenblatt <[EMAIL PROTECTED]> writes: > One thing that still isn't clear for me is how to implement access level > control on a per row basis. The SQL GRANT/REVOKE stuff doesn't deal with anything finer-grain than tables. The best way I know to cope with a need for row-level read access c

Re: [SQL] creating variable views

2001-07-06 Thread Josh Berkus
Dado, > Formatting functions? As in formatted output? Could you give an > example? Yes. For example, I have a function called: qf_format_contact_name (VARCHAR, VARCHAR, VARCHAR, VARCHAR) That produces (depending on data) formatted output like: Julie Snodgrass Ms. Keller, Law Clerk Human Re

Re: [SQL] creating variable views

2001-07-06 Thread Dado Feigenblatt
Josh Berkus wrote: > Dado, > > Glad to have you with us. Incidentally, in answer to two of your > remarks: > > 1. "current_user", like "current_timestamp" is a built-in SQL92 > function, as opposed to a PostgreSQL function. As such, it does not > require () and takes no parameters. Hm