diff options
Diffstat (limited to 'doc/src/sgml/plperl.sgml')
| -rw-r--r-- | doc/src/sgml/plperl.sgml | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/doc/src/sgml/plperl.sgml b/doc/src/sgml/plperl.sgml index 11040c5700c..ce217dfa33b 100644 --- a/doc/src/sgml/plperl.sgml +++ b/doc/src/sgml/plperl.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/plperl.sgml,v 2.67 2008/01/25 15:28:35 adunstan Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/plperl.sgml,v 2.68 2008/03/28 00:21:55 tgl Exp $ --> <chapter id="plperl"> <title>PL/Perl - Perl Procedural Language</title> @@ -17,12 +17,14 @@ <ulink url="http://www.perl.com">Perl programming language</ulink>. </para> - <para> The usual advantage to using PL/Perl is that this allows use, + <para> + The main advantage to using PL/Perl is that this allows use, within stored functions, of the manyfold <quote>string - munging</quote> operators and functions available for Perl. Parsing + munging</quote> operators and functions available for Perl. Parsing complex strings might be easier using Perl than it is with the - string functions and control structures provided in PL/pgSQL.</para> - + string functions and control structures provided in PL/pgSQL. + </para> + <para> To install PL/Perl in a particular database, use <literal>createlang plperl <replaceable>dbname</></literal>. @@ -739,7 +741,8 @@ $$ LANGUAGE plperl; <term><literal>$_TD->{event}</literal></term> <listitem> <para> - Trigger event: <literal>INSERT</>, <literal>UPDATE</>, <literal>DELETE</>, or <literal>UNKNOWN</> + Trigger event: <literal>INSERT</>, <literal>UPDATE</>, + <literal>DELETE</>, <literal>TRUNCATE</>, or <literal>UNKNOWN</> </para> </listitem> </varlistentry> @@ -822,14 +825,14 @@ $$ LANGUAGE plperl; </para> <para> - Triggers can return one of the following: + Row-level triggers can return one of the following: <variablelist> <varlistentry> <term><literal>return;</literal></term> <listitem> <para> - Execute the statement + Execute the operation </para> </listitem> </varlistentry> @@ -838,7 +841,7 @@ $$ LANGUAGE plperl; <term><literal>"SKIP"</literal></term> <listitem> <para> - Don't execute the statement + Don't execute the operation </para> </listitem> </varlistentry> |