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--
-- Perl Weekly Challenge 253
-- Task 1
-- See <https://perlweeklychallenge.org/blog/perl-weekly-challenge-253>
--
CREATE SCHEMA IF NOT EXISTS pwc253;
CREATE OR REPLACE FUNCTION
pwc253.task1_plpgsql( s char, words text[] )
RETURNS SETOF text
AS $CODE$
DECLARE
current_word text;
BEGIN
FOREACH current_word IN ARRAY words LOOP
RETURN QUERY
SELECT regexp_split_to_table( current_word, '[' || s || ']' );
END LOOP;
RETURN;
END
$CODE$
LANGUAGE plpgsql;
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