Re: is 8.4 array_agg() supposed to work with array values? - Mailing list pgsql-hackers

From Peter Eisentraut
Subject Re: is 8.4 array_agg() supposed to work with array values?
Date
Msg-id 200901201939.22113.peter_e@gmx.net
Whole thread Raw
In response to Re: is 8.4 array_agg() supposed to work with array values?  ("Merlin Moncure" <mmoncure@gmail.com>)
List pgsql-hackers
On Tuesday 20 January 2009 18:09:51 Merlin Moncure wrote:
> On 1/20/09, Peter Eisentraut <peter_e@gmx.net> wrote:
> >  integer[] is "array of integer", in the way C deals with arrays.  This
> > is also a main reason why composite types and arrays don't mix
> > orthogonally; there is no way to represent that in the system catalogs.
>
> What do you mean by this exactly?  We've had arrays of composite types
> since 8.2.

Yeah, the simple cases work.  I meant it more in a general sense of structured 
and arbitrarily composed types.  I'm also interested in multiset support, for 
example.  Under the current arrangement, you couldn't really have array of 
multiset of array of something.


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