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On 04/30/2014 12:52 PM, Torsten Förtsch wrote:
> Hi,
>
> we have the ROW type and we have arrays. We also can create arrays
> of rows like:
>
> select array_agg(r) from (values (1::int, 'today'::timestamp,
> 'a'::text), (2, 'yesterday', 'b')) r(a,b,c); array_agg
> -------------------------------------------------------------------
>
>
{"(1,\"2014-04-30 00:00:00\",a)","(2,\"2014-04-29 00:00:00\",b)"}
>
>
> Now I want to execute that query via dblink on a remote server. How
> do I specify the result type?
>
> select tb.* from dblink( 'dbname=postgres', $$ select array_agg(r)
> from (values (1::int, 'today'::timestamp, 'a'::text), $$) tb( WHAT
> DO I PUT HERE? )
select * from dblink('dbname=test',$$select array_agg(r) from (values
(1::int, 'today'::timestamp, 'a'::text), (2, 'yesterday', 'b'))
r(a,b,c)$$) as d(f text[]);
f
- -------------------------------------------------------------------
{"(1,\"2014-04-30 00:00:00\",a)","(2,\"2014-04-29 00:00:00\",b)"}
(1 row)
HTH,
Joe
- --
Joe Conway
credativ LLC: http://www.credativ.us
Linux, PostgreSQL, and general Open Source
Training, Service, Consulting, & 24x7 Support
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