Re: plPerl subroutine

In article <1904E3EB39448246A7ECB76DF34A70B00143B48A(at)TOCOMEXC03>,
"FERREIRA William (COFRAMI)" <william(dot)ferreira(at)airbus(dot)com> writes:
> CREATE OR REPLACE FUNCTION adoc.CREATE_XML_FILE(docId int4, eleId int4, evo
> int4, fileName text, fileRelativeDir text)
>   RETURNS int4 AS
> $BODY$
>  my $theClob='';
>  
>  my $params = 'select
> adoc.GET_XML_FRAG('.$_[0].','.$_[1].','.$_[2].',\''.$theClob.'\','.0;
>  $params = $params.')';

>  

>  $theClob =  spi_exec_query($params);

>  elog NOTICE, $theClob;

>  

>  return 4;
> $BODY$
>   LANGUAGE 'plperl' VOLATILE;

>  

> CREATE OR REPLACE FUNCTION adoc.GET_XML_FRAG(docId int4, eleId int4, evo int4,
> clob text, indx int4)
>   RETURNS text AS
> $BODY$
>  my $t_clob = $_[3].'totototototototototot';
>  
>  return $t_clob;
> $BODY$
>   LANGUAGE 'plperl' VOLATILE;

> but the CREATE_XML_FILE doesn't display 'totototototototototot' but
> HASH(0xf03fa4)....

... and rightly so. As documented in The Fine Manual, spi_exec_query
returns a hash reference. Probably you want something like

my $rv = spi_exec_query($params);
$theClob = $rv-.{rows}[0]->{get_xml_frag};