May 2017
Beginner
416 pages
10h 37m
English
Content preview from Mastering PostgreSQL 9.6
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Introducing PL/Perl
There is a lot more to say about PL/pgSQL. However, as I've only got 40 pages to cover this topic, it is time to move on to the next procedural language. PL/Perl has been adopted by many people as the ideal language to do string crunching. As you might know, Perl is famous for its string manipulation capabilities and therefore, still fairly popular after all these years.
To enable PL/Perl, you have two choices:
[postgres@linuxpc ~]$ createlang plperl test [postgres@linuxpc ~]$ createlang plperlu test
You can deploy trusted or untrusted Perl. If you want both, you have to enable both languages.
To show you how PL/Perl works, I have implemented a function that simply parses an e-mail address and returns true or false. ...
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