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authorTom Lane <tgl@sss.pgh.pa.us>2021-01-25 13:03:12 -0500
committerTom Lane <tgl@sss.pgh.pa.us>2021-01-25 13:03:12 -0500
commit41309f716ef5dbe6c3399f448e25f0ec2d23fa3c (patch)
treeaef078cf5cd553a10ef8cb39fa50b5cbd3172e6d
parent9b1f8af47e359e3f17177a9c18b3750add407e03 (diff)
downloadpostgresql-41309f716ef5dbe6c3399f448e25f0ec2d23fa3c.tar.gz
Fix broken ruleutils support for function TRANSFORM clauses.
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
-rw-r--r--contrib/hstore_plpython/expected/hstore_plpython.out16
-rw-r--r--contrib/hstore_plpython/sql/hstore_plpython.sql9
-rw-r--r--src/backend/utils/fmgr/funcapi.c5
3 files changed, 22 insertions, 8 deletions
diff --git a/contrib/hstore_plpython/expected/hstore_plpython.out b/contrib/hstore_plpython/expected/hstore_plpython.out
index b7a6a92ac6..243482374b 100644
--- a/contrib/hstore_plpython/expected/hstore_plpython.out
+++ b/contrib/hstore_plpython/expected/hstore_plpython.out
@@ -53,19 +53,29 @@ 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
diff --git a/contrib/hstore_plpython/sql/hstore_plpython.sql b/contrib/hstore_plpython/sql/hstore_plpython.sql
index 9ff2ebcd83..6d4a8f3a58 100644
--- a/contrib/hstore_plpython/sql/hstore_plpython.sql
+++ b/contrib/hstore_plpython/sql/hstore_plpython.sql
@@ -45,15 +45,18 @@ SELECT test1arr(array['aa=>bb, cc=>NULL'::hstore, 'dd=>ee']);
-- 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');
+
+--- test ruleutils
+\sf test2
-- test python -> hstore[]
diff --git a/src/backend/utils/fmgr/funcapi.c b/src/backend/utils/fmgr/funcapi.c
index 10c957ed90..cc545e2050 100644
--- a/src/backend/utils/fmgr/funcapi.c
+++ b/src/backend/utils/fmgr/funcapi.c
@@ -935,7 +935,9 @@ get_func_arg_info(HeapTuple procTup,
/*
* get_func_trftypes
*
- * Returns the number of transformed types used by function.
+ * Returns the number of transformed types used by the function.
+ * If there are any, a palloc'd array of the type OIDs is returned
+ * into *p_trftypes.
*/
int
get_func_trftypes(HeapTuple procTup,
@@ -964,7 +966,6 @@ get_func_trftypes(HeapTuple procTup,
ARR_HASNULL(arr) ||
ARR_ELEMTYPE(arr) != OIDOID)
elog(ERROR, "protrftypes is not a 1-D Oid array");
- Assert(nelems >= ((Form_pg_proc) GETSTRUCT(procTup))->pronargs);
*p_trftypes = (Oid *) palloc(nelems * sizeof(Oid));
memcpy(*p_trftypes, ARR_DATA_PTR(arr),
nelems * sizeof(Oid));