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This patch clarifies the usage of references in PL/Perl :)

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David Fetter
This commit is contained in:
Bruce Momjian 2004-10-15 16:51:48 +00:00
parent a1ce88a59c
commit bdb8b394c4
1 changed files with 8 additions and 3 deletions
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11
doc/src/sgml/plperl.sgml
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@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/plperl.sgml,v 2.28 2004/09/20 22:48:25 tgl Exp $
$PostgreSQL: pgsql/doc/src/sgml/plperl.sgml,v 2.29 2004/10/15 16:51:48 momjian Exp $
-->
<chapter id="plperl">
@ -260,7 +260,9 @@ composite types.
</para>
<para>
Here is an example of a PL/Perl function returning a rowset of a row type:
Here is an example of a PL/Perl function returning a rowset of a
row type. Note that a composite type is always represented as a
hash reference.
<programlisting>
CREATE TABLE test (
i int,
@ -305,7 +307,10 @@ $$ LANGUAGE plperl;
</para>
<para>
Here is an example of a PL/Perl function returning a rowset of a composite type.
Here is an example of a PL/Perl function returning a rowset of a
composite type. As a rowset is always a reference to an array
and a composite type is always a reference to a hash, a rowset of a
composite type is a reference to an array of hash references.
<programlisting>
CREATE TYPE testsetperl AS (f1 integer, f2 text, f3 text);