RE: [BUGS] Found an example prooving bug

2001-05-04 Thread Marcin Zukowski
> From my point of view, NULL is neither bigger, nor smaller, you can't > compare it with a number. > So it just comes at the end if you sort at all. Well, I know you can't compare null in, for example, WHERE clause. But if we want to sort data in some way, I would like Postgres to behave in any,

Sort ordering of NULLs (was Re: [BUGS] Found an example prooving bug)

2001-05-03 Thread Tom Lane
Bruce Momjian <[EMAIL PROTECTED]> writes: > We have a TODO item: > * Make NULL's come out at the beginning or end depending on the > ORDER BY direction The tricky part of this is to know which direction you are talking about, when all you've been given is an operator that might hav

Re: [BUGS] Found an example prooving bug

2001-05-03 Thread Bruce Momjian
> >From my point of view, NULL is neither bigger, nor smaller, you can't > compare it with a number. > > So it just comes at the end if you sort at all. > > (Perhaps you need to take a think about what NULL means in your data. Should > NULL sort as if it's 0?, +infinity?, -infinity? if so why?

RE: [BUGS] Found an example prooving bug

2001-05-03 Thread Piers Scannell
y?) regards, Piers Scannell System Architect, GlobeCast France Telecom Tel: +44 1707 667 228 Fax: +44 1707 667 206 > -Original Message- > From: Marcin Zukowski [mailto:[EMAIL PROTECTED]] > Sent: 30 April 2001 16:30 > To: Tom Lane > Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED

[BUGS] Found an example prooving bug

2001-05-03 Thread Marcin Zukowski
I found an example when postgres while executing the same query uses null values as sometimes bigger than everything and sometimes smaller. And I think it's BAD. Check this out: --- DROP TABLE NUTKI ; CREATE TABLE NUTKI ( ID INT