| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Eric B(dot) Ridge" <eebbrr(at)gmail(dot)com> |
| Cc: | Stephen Frost <sfrost(at)snowman(dot)net>, Marti Raudsepp <marti(at)juffo(dot)org>, Marcin Mańk <marcin(dot)mank(at)gmail(dot)com>, Mark Mielke <mark(at)mark(dot)mielke(dot)cc>, Darren Duncan <darren(at)darrenduncan(dot)net>, David Wilson <david(dot)t(dot)wilson(at)gmail(dot)com>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
| Subject: | Re: Thoughts on "SELECT * EXCLUDING (...) FROM ..."? |
| Date: | 2011-11-02 03:47:07 |
| Message-ID: | 19407.1320205627@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
"Eric B. Ridge" <eebbrr(at)gmail(dot)com> writes:
> However, why is
> select table.* foo from table
> allowed? What does that even mean?
Doesn't mean anything, I think --- the SQL standard seems to exclude it.
It's fairly hard to prevent it at the grammar level, since we regard
"foo.*" as a type of primitive expression, but I suspect it might be a
good idea for transformTargetList to throw an error instead of silently
ignoring the column label.
regards, tom lane
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