Re: pg_dump --binary-upgrade vs. ALTER TYPE ... DROP ATTRIBUTE
От | Tom Lane |
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Тема | Re: pg_dump --binary-upgrade vs. ALTER TYPE ... DROP ATTRIBUTE |
Дата | |
Msg-id | 28766.1303357024@sss.pgh.pa.us обсуждение исходный текст |
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
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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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