From: | Sferacarta Software <sferac(at)bo(dot)nettuno(dot)it> |
---|---|
To: | pgsql-sql(at)postgresql(dot)org, Colin Dick <cdick(at)mail(dot)ocis(dot)net> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: [SQL] Question re: null |
Date: | 1998-09-23 15:25:52 |
Message-ID: | 1726.980923@bo.nettuno.it |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers pgsql-sql |
Hello Colin,
martedì, 22 settembre 98, you wrote:
CD> I have written a function that will return an integer based on the length
CD> of a given field defined as text.
CD> It seems that if the given field has not yet been populated (ie: it is
CD> null), my function returns nothing. I have tried expressly sending back a
CD> value as such to no avail:
CD> int isempty(text*)
CD> {
CD> return (100);
CD> }
CD> If the text* is null, it does not return 100 though it does seem to
CD> process the function and does not core dump. (ie: returns blank entries
CD> with the proper number of tuples at the end). Any ideas? Thanks again.
I'm very interesting on this subject too.
Does anybody knows how to solve this question ?
I can't belive that we are the only people having problems
with NULLs. ;)
Jose'
From | Date | Subject | |
---|---|---|---|
Next Message | Bruce Momjian | 1998-09-23 16:46:00 | Re: [HACKERS] pg_dump, problem with user defined types? |
Previous Message | rmiranda | 1998-09-23 14:45:54 | Re: [HACKERS] Transaction system (proposal for 6.5) |
From | Date | Subject | |
---|---|---|---|
Next Message | Glenn Sullivan | 1998-09-23 15:55:42 | Cursors |
Previous Message | Sferacarta Software | 1998-09-23 13:45:53 | Re: [SQL] 2 questions. |