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postgres=#
postgres=# CREATE FUNCTION dup (f1 anyelement, OUT f2 anyelement, OUT f3 anyarray)
postgres-# AS 'select $1, array[$1,$1]' LANGUAGE sql;
CREATE FUNCTION
postgres=#
postgres=# SELECT * FROM dup(22);
REATE
f2 | f3
----+---------
22 | {22,22}
(1 row)
postgres=#
postgres=# drop function dup(f1 anyelement, OUT f2 anyelement, OUT f3 anyarray);
postgres=#
postgres=#
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