| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Hadley Willan <hadley(dot)willan(at)deeper(dot)co(dot)nz> |
| Cc: | Postgresql General <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: User functions not displayed by \df |
| Date: | 2002-10-29 22:31:02 |
| Message-ID: | 24221.1035930662@sss.pgh.pa.us |
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| Lists: | pgsql-general |
Hadley Willan <hadley(dot)willan(at)deeper(dot)co(dot)nz> writes:
> Okay, me again. I was readin the psql source and noticed that (df)
> describeFunction explicitly excludes return type 0 which just happens to
> be opaque. I did a select on pg_proc and the functions that had the
> return type 0 happened to be returns OPAQUE.
> Does anybody know why this would be the case?
I believe the original idea was to avoid cluttering the display with
datatype I/O functions. In 7.3 we've narrowed the scope of this check
so that only functions taking/returning type "cstring" are suppressed.
regards, tom lane
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