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+--
+-- Perl Weekly Challenge 251
+-- Task 2
+--
+-- See <https://perlweeklychallenge.org/blog/perl-weekly-challenge-251/>
+--
+
+CREATE SCHEMA IF NOT EXISTS pwc251;
+
+CREATE OR REPLACE FUNCTION
+pwc251.task2_plpgsql( matrix int[][] )
+RETURNS int
+AS $CODE$
+   SELECT pwc251.task2_plperl( matrix );
+$CODE$
+LANGUAGE sql;