| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Brendan Jurd" <direvus(at)gmail(dot)com> |
| Cc: | "Martijn van Oosterhout" <kleptog(at)svana(dot)org>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: [GENERAL] Empty arrays with ARRAY[] |
| Date: | 2007-11-27 15:56:01 |
| Message-ID: | 21455.1196178961@sss.pgh.pa.us |
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| Lists: | pgsql-general pgsql-hackers pgsql-patches |
"Brendan Jurd" <direvus(at)gmail(dot)com> writes:
> So far I've only considered the '::' cast syntax suggested in the
> original proposal, e.g.:
> ARRAY[]::text[]
> I wonder whether we are also interested in catching CAST(), e.g.:
> CAST(ARRAY[] AS text[])
I think you'll find that it's just about impossible to not handle both,
because they look the same after the grammar gets done.
regards, tom lane
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