| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | pjb(at)informatimago(dot)com |
| Cc: | pgsql-bugs(at)postgresql(dot)org |
| Subject: | Re: problem with plpgsql |
| Date: | 2001-08-20 15:15:31 |
| Message-ID: | 8769.998320531@sss.pgh.pa.us |
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| Lists: | pgsql-bugs |
Pascal Bourguignon <pjb(at)informatimago(dot)com> writes:
> I'm trying to write a function to either insert a new row, or update
> an existing row. However, the test "if not found" is always true,
I believe you're getting burnt by the fact that lim.login is declared
as char(8) --- so it has trailing blanks --- whereas the first parameter
of lim_update is declared as text --- so it doesn't have trailing
blanks. What's more, the comparison login=plogin will be done under
"text" rules wherein trailing blanks are significant. So 'pjb' is not
equal to 'pjb '.
The ip and mac columns have the same problem.
Advice: don't use char(n) for data that's not really fixed-width.
regards, tom lane
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