From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> |
Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Domains and arrays and composites, oh my |
Date: | 2017-07-13 19:42:48 |
Message-ID: | 15150.1499974968@sss.pgh.pa.us |
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Lists: | pgsql-hackers |
"David G. Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> writes:
> On Thursday, July 13, 2017, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> regression=# select * from fdc();
>> fdc
>> -------
>> (1,2)
>> (1 row)
> Select (fdc).* from fdc(); is considerably more intuitive that the cast.
> Does that give the expected multi-column result?
Yeah, it does, although I'm not sure how intuitive it is that the
parentheses are significant ...
regression=# select * from fdc();
fdc
-------
(1,2)
(1 row)
regression=# select fdc from fdc();
fdc
-------
(1,2)
(1 row)
regression=# select fdc.* from fdc();
fdc
-------
(1,2)
(1 row)
regression=# select (fdc).* from fdc();
r | i
---+---
1 | 2
(1 row)
regards, tom lane
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