| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Gregory Stark <stark(at)enterprisedb(dot)com> |
| Cc: | "Alvaro Herrera" <alvherre(at)commandprompt(dot)com>, "David Fetter" <david(at)fetter(dot)org>, andrew(at)supernews(dot)com, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Arrays of Complex Types |
| Date: | 2007-03-28 19:24:26 |
| Message-ID: | 5667.1175109866@sss.pgh.pa.us |
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| Lists: | pgsql-hackers pgsql-patches |
Gregory Stark <stark(at)enterprisedb(dot)com> writes:
> "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
>> CREATE ARRAY TYPE FOR foo
> I also made a suggestion along the way that we never create array types
> automatically except for domains.
That seems awfully strange, not to mention very non-backwards-compatible
since it exactly reverses what happens now.
I'd be willing to consider it if a domain were a zero-cost addition to
the equation, but it is not --- every operation on a domain has to check
to see if there are constraints to enforce. You shouldn't have to buy
into that overhead to have an array.
regards, tom lane
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