Re: returning an array as a list fo single-column rows? - Mailing list pgsql-sql

From Pavel Stehule
Subject Re: returning an array as a list fo single-column rows?
Date
Msg-id 162867790712231319i35fb31el8d4c367bc313979b@mail.gmail.com
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In response to returning an array as a list fo single-column rows?  (Louis-David Mitterrand <vindex+lists-pgsql-sql@apartia.org>)
Responses Re: returning an array as a list fo single-column rows?
List pgsql-sql
Hello

try

create or replace function unpack(anyarray)
returns setof anyelement as $$ select $1[i]    from generate_series(array_lower($1,1), array_upper($1,1)) g(i);
$$ language sql;

postgres=# select * from unpack(array[1,2,3,4]);unpack
--------     1     2     3     4
(4 rows)

Regards
Pavel Stehule

On 23/12/2007, Louis-David Mitterrand
<vindex+lists-pgsql-sql@apartia.org> wrote:
> Hi,
>
> is there a way to return a Pg array as a list of single-column row
> values?
>
> I am trying to circumvent DBI's lack of support for native database
> arrays and return the list of values from an ENUM as a perl array.
>
> Thanks,
>
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