Re: pg_dump --binary-upgrade vs. ALTER TYPE ... DROP ATTRIBUTE
| От | Tom Lane |
|---|---|
| Тема | Re: pg_dump --binary-upgrade vs. ALTER TYPE ... DROP ATTRIBUTE |
| Дата | |
| Msg-id | 28766.1303357024@sss.pgh.pa.us обсуждение |
| Ответ на | Re: pg_dump --binary-upgrade vs. ALTER TYPE ... DROP ATTRIBUTE (Robert Haas <robertmhaas@gmail.com>) |
| Ответы |
Re: pg_dump --binary-upgrade vs. ALTER TYPE ... DROP ATTRIBUTE
|
| Список | pgsql-hackers |
Robert Haas <robertmhaas@gmail.com> writes:
> On Wed, Apr 20, 2011 at 10:51 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> How about "ALTER TABLE tabname [NOT] OF TYPE typename"? It's at least a
>> smidgeon less ambiguous.
> I thought of that, but I hate to make CREATE TABLE and ALTER TABLE
> almost-but-not-quite symmetrical.
Oh, good point.
> But one might well wonder why we didn't decide on:
> CREATE TABLE n OF TYPE t;
> ...rather than the actual syntax:
> CREATE TABLE n OF t;
> ...which has brevity to recommend it, but likewise isn't terribly clear.
> I presume someone will now refer to a standard of some kind....
SQL:2008 11.3 <table definition>, the bits around <typed table clause>
to be specific.
The SQL committee's taste in syntax is, uh, not mine. They are
amazingly long-winded in places and then they go and do something
like this ...
regards, tom lane
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