From: | Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | pcs(at)bmail(dot)kek(dot)jp |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: [HACKERS] [BUG?] strange PQgetisnull |
Date: | 1998-07-16 15:27:11 |
Message-ID: | 199807161527.LAA01638@candle.pha.pa.us |
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Thread: | |
Lists: | pgsql-hackers |
> Hi all,
>
> I got strange result with PQgetisnull, say
>
> for empty table(I think that it's empty so null)
>
> I guess that
> after fetch some selection
> PQgetisnull(result, 0, 0) should give me "1 or true"
> But
> it gives me
> ERROR! field 0(of 0) of row 0(of 0) is not available... Segmentation
> Fault
You can't check for isnull on a Result that returns no rows. It is only
for looking at fields of an existing returned row.
--
Bruce Momjian | 830 Blythe Avenue
maillist(at)candle(dot)pha(dot)pa(dot)us | Drexel Hill, Pennsylvania 19026
+ If your life is a hard drive, | (610) 353-9879(w)
+ Christ can be your backup. | (610) 853-3000(h)
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