In article <4263E797.8000500@xxxxxxxxxxxxxxx>,
Alex <alex@xxxxxxxxxxxxxxx> writes:
> Hi,
> i am having a problem with a plperl function. bellow function always
> returns me an error saying "elements of Perl result array must be
> reference to hash"
> Can anyone point me out what i am doing wrong here?
> Basically i try to return data from a select in a specific record format.
> (i know that bellow example does not require a function, just want to
> get a feel for it.)
> Thanks in advance for any tips.
> Alex
> DROP FUNCTION get_item ();
> DROP TYPE my_items;
> CREATE TYPE my_items AS (
> item_id INTEGER, description TEXT,
> order_date DATE);
> CREATE FUNCTION get_item () RETURNS SETOF my_items AS $$
> my $res = [];
> my $rv = spi_exec_query('SELECT * FROM items LIMIT 10');
> my $nrows = $rv->{processed};
> foreach my $rn (0 .. $nrows - 1) {
> my $row = $rv->{rows}[$rn];
> my @record;
> $record[0] = $row->{item_id};
> $record[1] = $row->{item_descr};
> $record[2] = $row->{start_date};
> push @$res, @record;
This is the culprit. You should instead use something like
push @$res, {
item_id => $row->{item_id},
description => $row->{item_descr},
order_date => $row->{start_date},
};
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