Andrew Dunstan continues his O'Reilly series on Using Perl in PostgreSQL
"The first article in this series examined the use of PL/Perl to create triggers. The trigger inserted a row into a database table for audit purposes using a new PL/Perl method called spi_exec_query(). This article looks in more detail at uses of that function and its new cousin, as well as other features for handling bulk data and composite types.
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