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Fix broken ruleutils support for function TRANSFORM clauses.

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I chanced to notice that this dumped core due to a faulty Assert.
To add insult to injury, the output has been misformatted since v11.
Obviously we need some regression testing here.

Discussion: https://postgr.es/m/d1cc628c-3953-4209-957b-29427acc38c8@www.fastmail.com
This commit is contained in:
Tom Lane
2021-01-25 13:03:11 -05:00
parent d18e75664a
commit 07d46fceb4
8 changed files with 66 additions and 13 deletions
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16
contrib/hstore_plpython/expected/hstore_plpython.out
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@ -47,19 +47,29 @@ SELECT test1arr(array['aa=>bb, cc=>NULL'::hstore, 'dd=>ee']);
(1 row)
-- test python -> hstore
CREATE FUNCTION test2() RETURNS hstore
CREATE FUNCTION test2(a int, b text) RETURNS hstore
LANGUAGE plpythonu
TRANSFORM FOR TYPE hstore
AS $$
val = {'a': 1, 'b': 'boo', 'c': None}
val = {'a': a, 'b': b, 'c': None}
return val
$$;
SELECT test2();
SELECT test2(1, 'boo');
test2
---------------------------------
"a"=>"1", "b"=>"boo", "c"=>NULL
(1 row)
--- test ruleutils
\sf test2
CREATE OR REPLACE FUNCTION public.test2(a integer, b text)
RETURNS hstore
TRANSFORM FOR TYPE hstore
LANGUAGE plpythonu
AS $function$
val = {'a': a, 'b': b, 'c': None}
return val
$function$
-- test python -> hstore[]
CREATE FUNCTION test2arr() RETURNS hstore[]
LANGUAGE plpythonu