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postgresql/src/pl/plpython/expected/plpython_types.out

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--
-- Test data type behavior
--
--
-- Base/common types
--
CREATE FUNCTION test_type_conversion_bool(x bool) RETURNS bool AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_bool(true);
INFO: (True, <type 'bool'>)
test_type_conversion_bool
---------------------------
t
(1 row)
SELECT * FROM test_type_conversion_bool(false);
INFO: (False, <type 'bool'>)
test_type_conversion_bool
---------------------------
f
(1 row)
SELECT * FROM test_type_conversion_bool(null);
INFO: (None, <type 'NoneType'>)
test_type_conversion_bool
---------------------------
(1 row)
-- test various other ways to express Booleans in Python
CREATE FUNCTION test_type_conversion_bool_other(n int) RETURNS bool AS $$
# numbers
if n == 0:
ret = 0
elif n == 1:
ret = 5
# strings
elif n == 2:
ret = ''
elif n == 3:
ret = 'fa' # true in Python, false in PostgreSQL
# containers
elif n == 4:
ret = []
elif n == 5:
ret = [0]
plpy.info(ret, not not ret)
return ret
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_bool_other(0);
INFO: (0, False)
test_type_conversion_bool_other
---------------------------------
f
(1 row)
SELECT * FROM test_type_conversion_bool_other(1);
INFO: (5, True)
test_type_conversion_bool_other
---------------------------------
t
(1 row)
SELECT * FROM test_type_conversion_bool_other(2);
INFO: ('', False)
test_type_conversion_bool_other
---------------------------------
f
(1 row)
SELECT * FROM test_type_conversion_bool_other(3);
INFO: ('fa', True)
test_type_conversion_bool_other
---------------------------------
t
(1 row)
SELECT * FROM test_type_conversion_bool_other(4);
INFO: ([], False)
test_type_conversion_bool_other
---------------------------------
f
(1 row)
SELECT * FROM test_type_conversion_bool_other(5);
INFO: ([0], True)
test_type_conversion_bool_other
---------------------------------
t
(1 row)
CREATE FUNCTION test_type_conversion_char(x char) RETURNS char AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_char('a');
INFO: ('a', <type 'str'>)
test_type_conversion_char
---------------------------
a
(1 row)
SELECT * FROM test_type_conversion_char(null);
INFO: (None, <type 'NoneType'>)
test_type_conversion_char
---------------------------
(1 row)
CREATE FUNCTION test_type_conversion_int2(x int2) RETURNS int2 AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_int2(100::int2);
INFO: (100, <type 'int'>)
test_type_conversion_int2
---------------------------
100
(1 row)
SELECT * FROM test_type_conversion_int2(-100::int2);
INFO: (-100, <type 'int'>)
test_type_conversion_int2
---------------------------
-100
(1 row)
SELECT * FROM test_type_conversion_int2(null);
INFO: (None, <type 'NoneType'>)
test_type_conversion_int2
---------------------------
(1 row)
CREATE FUNCTION test_type_conversion_int4(x int4) RETURNS int4 AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_int4(100);
INFO: (100, <type 'int'>)
test_type_conversion_int4
---------------------------
100
(1 row)
SELECT * FROM test_type_conversion_int4(-100);
INFO: (-100, <type 'int'>)
test_type_conversion_int4
---------------------------
-100
(1 row)
SELECT * FROM test_type_conversion_int4(null);
INFO: (None, <type 'NoneType'>)
test_type_conversion_int4
---------------------------
(1 row)
CREATE FUNCTION test_type_conversion_int8(x int8) RETURNS int8 AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_int8(100);
INFO: (100L, <type 'long'>)
test_type_conversion_int8
---------------------------
100
(1 row)
SELECT * FROM test_type_conversion_int8(-100);
INFO: (-100L, <type 'long'>)
test_type_conversion_int8
---------------------------
-100
(1 row)
SELECT * FROM test_type_conversion_int8(5000000000);
INFO: (5000000000L, <type 'long'>)
test_type_conversion_int8
---------------------------
5000000000
(1 row)
SELECT * FROM test_type_conversion_int8(null);
INFO: (None, <type 'NoneType'>)
test_type_conversion_int8
---------------------------
(1 row)
CREATE FUNCTION test_type_conversion_numeric(x numeric) RETURNS numeric AS $$
# print just the class name, not the type, to avoid differences
# between decimal and cdecimal
plpy.info(str(x), x.__class__.__name__)
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_numeric(100);
INFO: ('100', 'Decimal')
test_type_conversion_numeric
------------------------------
100
(1 row)
SELECT * FROM test_type_conversion_numeric(-100);
INFO: ('-100', 'Decimal')
test_type_conversion_numeric
------------------------------
-100
(1 row)
SELECT * FROM test_type_conversion_numeric(100.0);
INFO: ('100.0', 'Decimal')
test_type_conversion_numeric
------------------------------
100.0
(1 row)
SELECT * FROM test_type_conversion_numeric(100.00);
INFO: ('100.00', 'Decimal')
test_type_conversion_numeric
------------------------------
100.00
(1 row)
SELECT * FROM test_type_conversion_numeric(5000000000.5);
INFO: ('5000000000.5', 'Decimal')
test_type_conversion_numeric
------------------------------
5000000000.5
(1 row)
SELECT * FROM test_type_conversion_numeric(1234567890.0987654321);
INFO: ('1234567890.0987654321', 'Decimal')
test_type_conversion_numeric
------------------------------
1234567890.0987654321
(1 row)
SELECT * FROM test_type_conversion_numeric(-1234567890.0987654321);
INFO: ('-1234567890.0987654321', 'Decimal')
test_type_conversion_numeric
------------------------------
-1234567890.0987654321
(1 row)
SELECT * FROM test_type_conversion_numeric(null);
INFO: ('None', 'NoneType')
test_type_conversion_numeric
------------------------------
(1 row)
CREATE FUNCTION test_type_conversion_float4(x float4) RETURNS float4 AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_float4(100);
INFO: (100.0, <type 'float'>)
test_type_conversion_float4
-----------------------------
100
(1 row)
SELECT * FROM test_type_conversion_float4(-100);
INFO: (-100.0, <type 'float'>)
test_type_conversion_float4
-----------------------------
-100
(1 row)
SELECT * FROM test_type_conversion_float4(5000.5);
INFO: (5000.5, <type 'float'>)
test_type_conversion_float4
-----------------------------
5000.5
(1 row)
SELECT * FROM test_type_conversion_float4(null);
INFO: (None, <type 'NoneType'>)
test_type_conversion_float4
-----------------------------
(1 row)
CREATE FUNCTION test_type_conversion_float8(x float8) RETURNS float8 AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_float8(100);
INFO: (100.0, <type 'float'>)
test_type_conversion_float8
-----------------------------
100
(1 row)
SELECT * FROM test_type_conversion_float8(-100);
INFO: (-100.0, <type 'float'>)
test_type_conversion_float8
-----------------------------
-100
(1 row)
SELECT * FROM test_type_conversion_float8(5000000000.5);
INFO: (5000000000.5, <type 'float'>)
test_type_conversion_float8
-----------------------------
5000000000.5
(1 row)
SELECT * FROM test_type_conversion_float8(null);
INFO: (None, <type 'NoneType'>)
test_type_conversion_float8
-----------------------------
(1 row)
SELECT * FROM test_type_conversion_float8(100100100.654321);
INFO: (100100100.654321, <type 'float'>)
test_type_conversion_float8
-----------------------------
100100100.654321
(1 row)
CREATE FUNCTION test_type_conversion_oid(x oid) RETURNS oid AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_oid(100);
INFO: (100L, <type 'long'>)
test_type_conversion_oid
--------------------------
100
(1 row)
SELECT * FROM test_type_conversion_oid(2147483649);
INFO: (2147483649L, <type 'long'>)
test_type_conversion_oid
--------------------------
2147483649
(1 row)
SELECT * FROM test_type_conversion_oid(null);
INFO: (None, <type 'NoneType'>)
test_type_conversion_oid
--------------------------
(1 row)
CREATE FUNCTION test_type_conversion_text(x text) RETURNS text AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_text('hello world');
INFO: ('hello world', <type 'str'>)
test_type_conversion_text
---------------------------
hello world
(1 row)
SELECT * FROM test_type_conversion_text(null);
INFO: (None, <type 'NoneType'>)
test_type_conversion_text
---------------------------
(1 row)
CREATE FUNCTION test_type_conversion_bytea(x bytea) RETURNS bytea AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_bytea('hello world');
INFO: ('hello world', <type 'str'>)
test_type_conversion_bytea
----------------------------
\x68656c6c6f20776f726c64
(1 row)
SELECT * FROM test_type_conversion_bytea(E'null\\000byte');
INFO: ('null\x00byte', <type 'str'>)
test_type_conversion_bytea
----------------------------
\x6e756c6c0062797465
(1 row)
SELECT * FROM test_type_conversion_bytea(null);
INFO: (None, <type 'NoneType'>)
test_type_conversion_bytea
----------------------------
(1 row)
CREATE FUNCTION test_type_marshal() RETURNS bytea AS $$
import marshal
return marshal.dumps('hello world')
$$ LANGUAGE plpythonu;
CREATE FUNCTION test_type_unmarshal(x bytea) RETURNS text AS $$
import marshal
try:
return marshal.loads(x)
except ValueError, e:
return 'FAILED: ' + str(e)
$$ LANGUAGE plpythonu;
SELECT test_type_unmarshal(x) FROM test_type_marshal() x;
test_type_unmarshal
---------------------
hello world
(1 row)
--
-- Domains
--
CREATE DOMAIN booltrue AS bool CHECK (VALUE IS TRUE OR VALUE IS NULL);
CREATE FUNCTION test_type_conversion_booltrue(x booltrue, y bool) RETURNS booltrue AS $$
return y
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_booltrue(true, true);
test_type_conversion_booltrue
-------------------------------
t
(1 row)
SELECT * FROM test_type_conversion_booltrue(false, true);
ERROR: value for domain booltrue violates check constraint "booltrue_check"
SELECT * FROM test_type_conversion_booltrue(true, false);
ERROR: value for domain booltrue violates check constraint "booltrue_check"
CONTEXT: while creating return value
PL/Python function "test_type_conversion_booltrue"
CREATE DOMAIN uint2 AS int2 CHECK (VALUE >= 0);
CREATE FUNCTION test_type_conversion_uint2(x uint2, y int) RETURNS uint2 AS $$
plpy.info(x, type(x))
return y
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_uint2(100::uint2, 50);
INFO: (100, <type 'int'>)
test_type_conversion_uint2
----------------------------
50
(1 row)
SELECT * FROM test_type_conversion_uint2(100::uint2, -50);
INFO: (100, <type 'int'>)
ERROR: value for domain uint2 violates check constraint "uint2_check"
CONTEXT: while creating return value
PL/Python function "test_type_conversion_uint2"
SELECT * FROM test_type_conversion_uint2(null, 1);
INFO: (None, <type 'NoneType'>)
test_type_conversion_uint2
----------------------------
1
(1 row)
CREATE DOMAIN nnint AS int CHECK (VALUE IS NOT NULL);
CREATE FUNCTION test_type_conversion_nnint(x nnint, y int) RETURNS nnint AS $$
return y
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_nnint(10, 20);
test_type_conversion_nnint
----------------------------
20
(1 row)
SELECT * FROM test_type_conversion_nnint(null, 20);
ERROR: value for domain nnint violates check constraint "nnint_check"
SELECT * FROM test_type_conversion_nnint(10, null);
ERROR: value for domain nnint violates check constraint "nnint_check"
CONTEXT: while creating return value
PL/Python function "test_type_conversion_nnint"
CREATE DOMAIN bytea10 AS bytea CHECK (octet_length(VALUE) = 10 AND VALUE IS NOT NULL);
CREATE FUNCTION test_type_conversion_bytea10(x bytea10, y bytea) RETURNS bytea10 AS $$
plpy.info(x, type(x))
return y
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_bytea10('hello wold', 'hello wold');
INFO: ('hello wold', <type 'str'>)
test_type_conversion_bytea10
------------------------------
\x68656c6c6f20776f6c64
(1 row)
SELECT * FROM test_type_conversion_bytea10('hello world', 'hello wold');
ERROR: value for domain bytea10 violates check constraint "bytea10_check"
SELECT * FROM test_type_conversion_bytea10('hello word', 'hello world');
INFO: ('hello word', <type 'str'>)
ERROR: value for domain bytea10 violates check constraint "bytea10_check"
CONTEXT: while creating return value
PL/Python function "test_type_conversion_bytea10"
SELECT * FROM test_type_conversion_bytea10(null, 'hello word');
ERROR: value for domain bytea10 violates check constraint "bytea10_check"
SELECT * FROM test_type_conversion_bytea10('hello word', null);
INFO: ('hello word', <type 'str'>)
ERROR: value for domain bytea10 violates check constraint "bytea10_check"
CONTEXT: while creating return value
PL/Python function "test_type_conversion_bytea10"
--
-- Arrays
--
CREATE FUNCTION test_type_conversion_array_int4(x int4[]) RETURNS int4[] AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_int4(ARRAY[0, 100]);
INFO: ([0, 100], <type 'list'>)
test_type_conversion_array_int4
---------------------------------
{0,100}
(1 row)
SELECT * FROM test_type_conversion_array_int4(ARRAY[0,-100,55]);
INFO: ([0, -100, 55], <type 'list'>)
test_type_conversion_array_int4
---------------------------------
{0,-100,55}
(1 row)
SELECT * FROM test_type_conversion_array_int4(ARRAY[NULL,1]);
INFO: ([None, 1], <type 'list'>)
test_type_conversion_array_int4
---------------------------------
{NULL,1}
(1 row)
SELECT * FROM test_type_conversion_array_int4(ARRAY[]::integer[]);
INFO: ([], <type 'list'>)
test_type_conversion_array_int4
---------------------------------
{}
(1 row)
SELECT * FROM test_type_conversion_array_int4(NULL);
INFO: (None, <type 'NoneType'>)
test_type_conversion_array_int4
---------------------------------
(1 row)
SELECT * FROM test_type_conversion_array_int4(ARRAY[[1,2,3],[4,5,6]]);
INFO: ([[1, 2, 3], [4, 5, 6]], <type 'list'>)
test_type_conversion_array_int4
---------------------------------
{{1,2,3},{4,5,6}}
(1 row)
SELECT * FROM test_type_conversion_array_int4(ARRAY[[[1,2,NULL],[NULL,5,6]],[[NULL,8,9],[10,11,12]]]);
INFO: ([[[1, 2, None], [None, 5, 6]], [[None, 8, 9], [10, 11, 12]]], <type 'list'>)
test_type_conversion_array_int4
---------------------------------------------------
{{{1,2,NULL},{NULL,5,6}},{{NULL,8,9},{10,11,12}}}
(1 row)
SELECT * FROM test_type_conversion_array_int4('[2:4]={1,2,3}');
INFO: ([1, 2, 3], <type 'list'>)
test_type_conversion_array_int4
---------------------------------
{1,2,3}
(1 row)
CREATE FUNCTION test_type_conversion_array_int8(x int8[]) RETURNS int8[] AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_int8(ARRAY[[[1,2,NULL],[NULL,5,6]],[[NULL,8,9],[10,11,12]]]::int8[]);
INFO: ([[[1L, 2L, None], [None, 5L, 6L]], [[None, 8L, 9L], [10L, 11L, 12L]]], <type 'list'>)
test_type_conversion_array_int8
---------------------------------------------------
{{{1,2,NULL},{NULL,5,6}},{{NULL,8,9},{10,11,12}}}
(1 row)
CREATE FUNCTION test_type_conversion_array_date(x date[]) RETURNS date[] AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_date(ARRAY[[['2016-09-21','2016-09-22',NULL],[NULL,'2016-10-21','2016-10-22']],
[[NULL,'2016-11-21','2016-10-21'],['2015-09-21','2015-09-22','2014-09-21']]]::date[]);
INFO: ([[['09-21-2016', '09-22-2016', None], [None, '10-21-2016', '10-22-2016']], [[None, '11-21-2016', '10-21-2016'], ['09-21-2015', '09-22-2015', '09-21-2014']]], <type 'list'>)
test_type_conversion_array_date
---------------------------------------------------------------------------------------------------------------------------------
{{{09-21-2016,09-22-2016,NULL},{NULL,10-21-2016,10-22-2016}},{{NULL,11-21-2016,10-21-2016},{09-21-2015,09-22-2015,09-21-2014}}}
(1 row)
CREATE FUNCTION test_type_conversion_array_timestamp(x timestamp[]) RETURNS timestamp[] AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_timestamp(ARRAY[[['2016-09-21 15:34:24.078792-04','2016-10-22 11:34:24.078795-04',NULL],
[NULL,'2016-10-21 11:34:25.078792-04','2016-10-21 11:34:24.098792-04']],
[[NULL,'2016-01-21 11:34:24.078792-04','2016-11-21 11:34:24.108792-04'],
['2015-09-21 11:34:24.079792-04','2014-09-21 11:34:24.078792-04','2013-09-21 11:34:24.078792-04']]]::timestamp[]);
INFO: ([[['Wed Sep 21 15:34:24.078792 2016', 'Sat Oct 22 11:34:24.078795 2016', None], [None, 'Fri Oct 21 11:34:25.078792 2016', 'Fri Oct 21 11:34:24.098792 2016']], [[None, 'Thu Jan 21 11:34:24.078792 2016', 'Mon Nov 21 11:34:24.108792 2016'], ['Mon Sep 21 11:34:24.079792 2015', 'Sun Sep 21 11:34:24.078792 2014', 'Sat Sep 21 11:34:24.078792 2013']]], <type 'list'>)
test_type_conversion_array_timestamp
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
{{{"Wed Sep 21 15:34:24.078792 2016","Sat Oct 22 11:34:24.078795 2016",NULL},{NULL,"Fri Oct 21 11:34:25.078792 2016","Fri Oct 21 11:34:24.098792 2016"}},{{NULL,"Thu Jan 21 11:34:24.078792 2016","Mon Nov 21 11:34:24.108792 2016"},{"Mon Sep 21 11:34:24.079792 2015","Sun Sep 21 11:34:24.078792 2014","Sat Sep 21 11:34:24.078792 2013"}}}
(1 row)
CREATE OR REPLACE FUNCTION pyreturnmultidemint4(h int4, i int4, j int4, k int4 ) RETURNS int4[] AS $BODY$
m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
plpy.info(m, type(m))
return m
$BODY$ LANGUAGE plpythonu;
select pyreturnmultidemint4(8,5,3,2);
INFO: ([[[[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]]], [[[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]]]], <type 'list'>)
pyreturnmultidemint4
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
{{{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}},{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}},{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}}},{{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}},{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}},{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}}}}
(1 row)
CREATE OR REPLACE FUNCTION pyreturnmultidemint8(h int4, i int4, j int4, k int4 ) RETURNS int8[] AS $BODY$
m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
plpy.info(m, type(m))
return m
$BODY$ LANGUAGE plpythonu;
select pyreturnmultidemint8(5,5,3,2);
INFO: ([[[[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]]], [[[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]]]], <type 'list'>)
pyreturnmultidemint8
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
{{{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}},{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}},{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}}},{{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}},{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}},{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}}}}
(1 row)
CREATE OR REPLACE FUNCTION pyreturnmultidemfloat4(h int4, i int4, j int4, k int4 ) RETURNS float4[] AS $BODY$
m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
plpy.info(m, type(m))
return m
$BODY$ LANGUAGE plpythonu;
select pyreturnmultidemfloat4(6,5,3,2);
INFO: ([[[[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]]], [[[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]]]], <type 'list'>)
pyreturnmultidemfloat4
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{{{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}},{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}},{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}}},{{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}},{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}},{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}}}}
(1 row)
CREATE OR REPLACE FUNCTION pyreturnmultidemfloat8(h int4, i int4, j int4, k int4 ) RETURNS float8[] AS $BODY$
m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
plpy.info(m, type(m))
return m
$BODY$ LANGUAGE plpythonu;
select pyreturnmultidemfloat8(7,5,3,2);
INFO: ([[[[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]]], [[[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]]]], <type 'list'>)
pyreturnmultidemfloat8
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
{{{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}},{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}},{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}}},{{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}},{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}},{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}}}}
(1 row)
CREATE FUNCTION test_type_conversion_array_text(x text[]) RETURNS text[] AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_text(ARRAY['foo', 'bar']);
INFO: (['foo', 'bar'], <type 'list'>)
test_type_conversion_array_text
---------------------------------
{foo,bar}
(1 row)
SELECT * FROM test_type_conversion_array_text(ARRAY[['foo', 'bar'],['foo2', 'bar2']]);
INFO: ([['foo', 'bar'], ['foo2', 'bar2']], <type 'list'>)
test_type_conversion_array_text
---------------------------------
{{foo,bar},{foo2,bar2}}
(1 row)
CREATE FUNCTION test_type_conversion_array_bytea(x bytea[]) RETURNS bytea[] AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_bytea(ARRAY[E'\\xdeadbeef'::bytea, NULL]);
INFO: (['\xde\xad\xbe\xef', None], <type 'list'>)
test_type_conversion_array_bytea
----------------------------------
{"\\xdeadbeef",NULL}
(1 row)
CREATE FUNCTION test_type_conversion_array_mixed1() RETURNS text[] AS $$
return [123, 'abc']
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_mixed1();
test_type_conversion_array_mixed1
-----------------------------------
{123,abc}
(1 row)
CREATE FUNCTION test_type_conversion_array_mixed2() RETURNS int[] AS $$
return [123, 'abc']
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_mixed2();
ERROR: invalid input syntax for type integer: "abc"
CONTEXT: while creating return value
PL/Python function "test_type_conversion_array_mixed2"
CREATE FUNCTION test_type_conversion_mdarray_malformed() RETURNS int[] AS $$
return [[1,2,3],[4,5]]
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_mdarray_malformed();
ERROR: wrong length of inner sequence: has length 2, but 3 was expected
DETAIL: To construct a multidimensional array, the inner sequences must all have the same length.
CONTEXT: while creating return value
PL/Python function "test_type_conversion_mdarray_malformed"
CREATE FUNCTION test_type_conversion_mdarray_toodeep() RETURNS int[] AS $$
return [[[[[[[1]]]]]]]
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_mdarray_toodeep();
ERROR: number of array dimensions exceeds the maximum allowed (6)
CONTEXT: while creating return value
PL/Python function "test_type_conversion_mdarray_toodeep"
CREATE FUNCTION test_type_conversion_array_record() RETURNS type_record[] AS $$
return [{'first': 'one', 'second': 42}, {'first': 'two', 'second': 11}]
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_record();
test_type_conversion_array_record
-----------------------------------
{"(one,42)","(two,11)"}
(1 row)
CREATE FUNCTION test_type_conversion_array_string() RETURNS text[] AS $$
return 'abc'
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_string();
test_type_conversion_array_string
-----------------------------------
{a,b,c}
(1 row)
CREATE FUNCTION test_type_conversion_array_tuple() RETURNS text[] AS $$
return ('abc', 'def')
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_tuple();
test_type_conversion_array_tuple
----------------------------------
{abc,def}
(1 row)
CREATE FUNCTION test_type_conversion_array_error() RETURNS int[] AS $$
return 5
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_error();
ERROR: return value of function with array return type is not a Python sequence
CONTEXT: while creating return value
PL/Python function "test_type_conversion_array_error"
--
-- Domains over arrays
--
CREATE DOMAIN ordered_pair_domain AS integer[] CHECK (array_length(VALUE,1)=2 AND VALUE[1] < VALUE[2]);
CREATE FUNCTION test_type_conversion_array_domain(x ordered_pair_domain) RETURNS ordered_pair_domain AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_domain(ARRAY[0, 100]::ordered_pair_domain);
INFO: ([0, 100], <type 'list'>)
test_type_conversion_array_domain
-----------------------------------
{0,100}
(1 row)
SELECT * FROM test_type_conversion_array_domain(NULL::ordered_pair_domain);
INFO: (None, <type 'NoneType'>)
test_type_conversion_array_domain
-----------------------------------
(1 row)
CREATE FUNCTION test_type_conversion_array_domain_check_violation() RETURNS ordered_pair_domain AS $$
return [2,1]
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_domain_check_violation();
ERROR: value for domain ordered_pair_domain violates check constraint "ordered_pair_domain_check"
CONTEXT: while creating return value
PL/Python function "test_type_conversion_array_domain_check_violation"
--
-- Arrays of domains
--
CREATE FUNCTION test_read_uint2_array(x uint2[]) RETURNS uint2 AS $$
plpy.info(x, type(x))
return x[0]
$$ LANGUAGE plpythonu;
select test_read_uint2_array(array[1::uint2]);
INFO: ([1], <type 'list'>)
test_read_uint2_array
-----------------------
1
(1 row)
CREATE FUNCTION test_build_uint2_array(x int2) RETURNS uint2[] AS $$
return [x, x]
$$ LANGUAGE plpythonu;
select test_build_uint2_array(1::int2);
test_build_uint2_array
------------------------
{1,1}
(1 row)
select test_build_uint2_array(-1::int2); -- fail
ERROR: value for domain uint2 violates check constraint "uint2_check"
CONTEXT: while creating return value
PL/Python function "test_build_uint2_array"
--
-- ideally this would work, but for now it doesn't, because the return value
-- is [[2,4], [2,4]] which our conversion code thinks should become a 2-D
-- integer array, not an array of arrays.
--
CREATE FUNCTION test_type_conversion_domain_array(x integer[])
RETURNS ordered_pair_domain[] AS $$
return [x, x]
$$ LANGUAGE plpythonu;
select test_type_conversion_domain_array(array[2,4]);
ERROR: return value of function with array return type is not a Python sequence
CONTEXT: while creating return value
PL/Python function "test_type_conversion_domain_array"
select test_type_conversion_domain_array(array[4,2]); -- fail
ERROR: return value of function with array return type is not a Python sequence
CONTEXT: while creating return value
PL/Python function "test_type_conversion_domain_array"
CREATE FUNCTION test_type_conversion_domain_array2(x ordered_pair_domain)
RETURNS integer AS $$
plpy.info(x, type(x))
return x[1]
$$ LANGUAGE plpythonu;
select test_type_conversion_domain_array2(array[2,4]);
INFO: ([2, 4], <type 'list'>)
test_type_conversion_domain_array2
------------------------------------
4
(1 row)
select test_type_conversion_domain_array2(array[4,2]); -- fail
ERROR: value for domain ordered_pair_domain violates check constraint "ordered_pair_domain_check"
CREATE FUNCTION test_type_conversion_array_domain_array(x ordered_pair_domain[])
RETURNS ordered_pair_domain AS $$
plpy.info(x, type(x))
return x[0]
$$ LANGUAGE plpythonu;
select test_type_conversion_array_domain_array(array[array[2,4]::ordered_pair_domain]);
INFO: ([[2, 4]], <type 'list'>)
test_type_conversion_array_domain_array
-----------------------------------------
{2,4}
(1 row)
---
--- Composite types
---
CREATE TABLE employee (
name text,
basesalary integer,
bonus integer
);
INSERT INTO employee VALUES ('John', 100, 10), ('Mary', 200, 10);
CREATE OR REPLACE FUNCTION test_composite_table_input(e employee) RETURNS integer AS $$
return e['basesalary'] + e['bonus']
$$ LANGUAGE plpythonu;
SELECT name, test_composite_table_input(employee.*) FROM employee;
name | test_composite_table_input
------+----------------------------
John | 110
Mary | 210
(2 rows)
ALTER TABLE employee DROP bonus;
SELECT name, test_composite_table_input(employee.*) FROM employee;
ERROR: KeyError: 'bonus'
CONTEXT: Traceback (most recent call last):
PL/Python function "test_composite_table_input", line 2, in <module>
return e['basesalary'] + e['bonus']
PL/Python function "test_composite_table_input"
ALTER TABLE employee ADD bonus integer;
UPDATE employee SET bonus = 10;
SELECT name, test_composite_table_input(employee.*) FROM employee;
name | test_composite_table_input
------+----------------------------
John | 110
Mary | 210
(2 rows)
CREATE TYPE named_pair AS (
i integer,
j integer
);
CREATE OR REPLACE FUNCTION test_composite_type_input(p named_pair) RETURNS integer AS $$
return sum(p.values())
$$ LANGUAGE plpythonu;
SELECT test_composite_type_input(row(1, 2));
test_composite_type_input
---------------------------
3
(1 row)
ALTER TYPE named_pair RENAME TO named_pair_2;
SELECT test_composite_type_input(row(1, 2));
test_composite_type_input
---------------------------
3
(1 row)
--
-- Domains within composite
--
CREATE TYPE nnint_container AS (f1 int, f2 nnint);
CREATE FUNCTION nnint_test(x int, y int) RETURNS nnint_container AS $$
return {'f1': x, 'f2': y}
$$ LANGUAGE plpythonu;
SELECT nnint_test(null, 3);
nnint_test
------------
(,3)
(1 row)
SELECT nnint_test(3, null); -- fail
ERROR: value for domain nnint violates check constraint "nnint_check"
CONTEXT: while creating return value
PL/Python function "nnint_test"
--
-- Domains of composite
--
CREATE DOMAIN ordered_named_pair AS named_pair_2 CHECK((VALUE).i <= (VALUE).j);
CREATE FUNCTION read_ordered_named_pair(p ordered_named_pair) RETURNS integer AS $$
return p['i'] + p['j']
$$ LANGUAGE plpythonu;
SELECT read_ordered_named_pair(row(1, 2));
read_ordered_named_pair
-------------------------
3
(1 row)
SELECT read_ordered_named_pair(row(2, 1)); -- fail
ERROR: value for domain ordered_named_pair violates check constraint "ordered_named_pair_check"
CREATE FUNCTION build_ordered_named_pair(i int, j int) RETURNS ordered_named_pair AS $$
return {'i': i, 'j': j}
$$ LANGUAGE plpythonu;
SELECT build_ordered_named_pair(1,2);
build_ordered_named_pair
--------------------------
(1,2)
(1 row)
SELECT build_ordered_named_pair(2,1); -- fail
ERROR: value for domain ordered_named_pair violates check constraint "ordered_named_pair_check"
CONTEXT: while creating return value
PL/Python function "build_ordered_named_pair"
CREATE FUNCTION build_ordered_named_pairs(i int, j int) RETURNS ordered_named_pair[] AS $$
return [{'i': i, 'j': j}, {'i': i, 'j': j+1}]
$$ LANGUAGE plpythonu;
SELECT build_ordered_named_pairs(1,2);
build_ordered_named_pairs
---------------------------
{"(1,2)","(1,3)"}
(1 row)
SELECT build_ordered_named_pairs(2,1); -- fail
ERROR: value for domain ordered_named_pair violates check constraint "ordered_named_pair_check"
CONTEXT: while creating return value
PL/Python function "build_ordered_named_pairs"
--
-- Prepared statements
--
CREATE OR REPLACE FUNCTION test_prep_bool_input() RETURNS int
LANGUAGE plpythonu
AS $$
plan = plpy.prepare("SELECT CASE WHEN $1 THEN 1 ELSE 0 END AS val", ['boolean'])
rv = plpy.execute(plan, ['fa'], 5) # 'fa' is true in Python
return rv[0]['val']
$$;
SELECT test_prep_bool_input(); -- 1
test_prep_bool_input
----------------------
1
(1 row)
CREATE OR REPLACE FUNCTION test_prep_bool_output() RETURNS bool
LANGUAGE plpythonu
AS $$
plan = plpy.prepare("SELECT $1 = 1 AS val", ['int'])
rv = plpy.execute(plan, [0], 5)
plpy.info(rv[0])
return rv[0]['val']
$$;
SELECT test_prep_bool_output(); -- false
INFO: {'val': False}
test_prep_bool_output
-----------------------
f
(1 row)
CREATE OR REPLACE FUNCTION test_prep_bytea_input(bb bytea) RETURNS int
LANGUAGE plpythonu
AS $$
plan = plpy.prepare("SELECT octet_length($1) AS val", ['bytea'])
rv = plpy.execute(plan, [bb], 5)
return rv[0]['val']
$$;
SELECT test_prep_bytea_input(E'a\\000b'); -- 3 (embedded null formerly truncated value)
test_prep_bytea_input
-----------------------
3
(1 row)
CREATE OR REPLACE FUNCTION test_prep_bytea_output() RETURNS bytea
LANGUAGE plpythonu
AS $$
plan = plpy.prepare("SELECT decode('aa00bb', 'hex') AS val")
rv = plpy.execute(plan, [], 5)
plpy.info(rv[0])
return rv[0]['val']
$$;
SELECT test_prep_bytea_output();
INFO: {'val': '\xaa\x00\xbb'}
test_prep_bytea_output
------------------------
\xaa00bb
(1 row)
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