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| -rw-r--r-- | challenge-161/luca-ferrari/postgresql/ch-2.plperl | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/challenge-161/luca-ferrari/postgresql/ch-2.plperl b/challenge-161/luca-ferrari/postgresql/ch-2.plperl new file mode 100644 index 0000000000..edae5c307c --- /dev/null +++ b/challenge-161/luca-ferrari/postgresql/ch-2.plperl @@ -0,0 +1,28 @@ +-- Perl Weekly Challenge 161 +CREATE SCHEMA IF NOT EXISTS pwc161; + + +CREATE OR REPLACE FUNCTION pwc161.pangrams() +RETURNS SETOF text +AS $CODE$ + my @found; + + for my $letter ( 'a' .. 'z' ){ + my $query = spi_query( "SELECT word FROM pwc161.dictionary WHERE word like '%$letter%' order by random()" ); + + while ( defined ( $row = spi_fetchrow( $query ) ) ) { + # first word ever + push @found, $row->{ word } and return_next( $row->{ word } ) if ! @found; + + next if grep /$letter/, @found; + + # add the word + push @found, $row->{ word }; + return_next( $row->{ word } ); + + } +} + +return undef; +$CODE$ +LANGUAGE plperl; |
