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|
-- JSON_EXISTS
SELECT JSON_EXISTS(NULL::jsonb, '$');
json_exists
-------------
(1 row)
SELECT JSON_EXISTS(jsonb '[]', '$');
json_exists
-------------
t
(1 row)
SELECT JSON_EXISTS(JSON_OBJECT(RETURNING jsonb), '$');
json_exists
-------------
t
(1 row)
SELECT JSON_EXISTS(jsonb '1', '$');
json_exists
-------------
t
(1 row)
SELECT JSON_EXISTS(jsonb 'null', '$');
json_exists
-------------
t
(1 row)
SELECT JSON_EXISTS(jsonb '[]', '$');
json_exists
-------------
t
(1 row)
SELECT JSON_EXISTS(jsonb '1', '$.a');
json_exists
-------------
f
(1 row)
SELECT JSON_EXISTS(jsonb '1', 'strict $.a'); -- FALSE on error
json_exists
-------------
f
(1 row)
SELECT JSON_EXISTS(jsonb '1', 'strict $.a' ERROR ON ERROR);
ERROR: jsonpath member accessor can only be applied to an object
SELECT JSON_EXISTS(jsonb 'null', '$.a');
json_exists
-------------
f
(1 row)
SELECT JSON_EXISTS(jsonb '[]', '$.a');
json_exists
-------------
f
(1 row)
SELECT JSON_EXISTS(jsonb '[1, "aaa", {"a": 1}]', 'strict $.a'); -- FALSE on error
json_exists
-------------
f
(1 row)
SELECT JSON_EXISTS(jsonb '[1, "aaa", {"a": 1}]', 'lax $.a');
json_exists
-------------
t
(1 row)
SELECT JSON_EXISTS(jsonb '{}', '$.a');
json_exists
-------------
f
(1 row)
SELECT JSON_EXISTS(jsonb '{"b": 1, "a": 2}', '$.a');
json_exists
-------------
t
(1 row)
SELECT JSON_EXISTS(jsonb '1', '$.a.b');
json_exists
-------------
f
(1 row)
SELECT JSON_EXISTS(jsonb '{"a": {"b": 1}}', '$.a.b');
json_exists
-------------
t
(1 row)
SELECT JSON_EXISTS(jsonb '{"a": 1, "b": 2}', '$.a.b');
json_exists
-------------
f
(1 row)
SELECT JSON_EXISTS(jsonb '{"a": 1, "b": 2}', '$.* ? (@ > $x)' PASSING 1 AS x);
json_exists
-------------
t
(1 row)
SELECT JSON_EXISTS(jsonb '{"a": 1, "b": 2}', '$.* ? (@ > $x)' PASSING '1' AS x);
json_exists
-------------
f
(1 row)
SELECT JSON_EXISTS(jsonb '{"a": 1, "b": 2}', '$.* ? (@ > $x && @ < $y)' PASSING 0 AS x, 2 AS y);
json_exists
-------------
t
(1 row)
SELECT JSON_EXISTS(jsonb '{"a": 1, "b": 2}', '$.* ? (@ > $x && @ < $y)' PASSING 0 AS x, 1 AS y);
json_exists
-------------
f
(1 row)
-- extension: boolean expressions
SELECT JSON_EXISTS(jsonb '1', '$ > 2');
json_exists
-------------
t
(1 row)
SELECT JSON_EXISTS(jsonb '1', '$.a > 2' ERROR ON ERROR);
json_exists
-------------
t
(1 row)
-- JSON_VALUE
SELECT JSON_VALUE(NULL::jsonb, '$');
json_value
------------
(1 row)
SELECT JSON_VALUE(jsonb 'null', '$');
json_value
------------
(1 row)
SELECT JSON_VALUE(jsonb 'null', '$' RETURNING int);
json_value
------------
(1 row)
SELECT JSON_VALUE(jsonb 'true', '$');
json_value
------------
t
(1 row)
SELECT JSON_VALUE(jsonb 'true', '$' RETURNING bool);
json_value
------------
t
(1 row)
SELECT JSON_VALUE(jsonb '123', '$');
json_value
------------
123
(1 row)
SELECT JSON_VALUE(jsonb '123', '$' RETURNING int) + 234;
?column?
----------
357
(1 row)
SELECT JSON_VALUE(jsonb '123', '$' RETURNING text);
json_value
------------
123
(1 row)
/* jsonb bytea ??? */
SELECT JSON_VALUE(jsonb '123', '$' RETURNING bytea ERROR ON ERROR);
json_value
------------
\x313233
(1 row)
SELECT JSON_VALUE(jsonb '1.23', '$');
json_value
------------
1.23
(1 row)
SELECT JSON_VALUE(jsonb '1.23', '$' RETURNING int);
json_value
------------
(1 row)
SELECT JSON_VALUE(jsonb '"1.23"', '$' RETURNING numeric);
json_value
------------
1.23
(1 row)
SELECT JSON_VALUE(jsonb '"1.23"', '$' RETURNING int ERROR ON ERROR);
ERROR: invalid input syntax for type integer: "1.23"
SELECT JSON_VALUE(jsonb '"aaa"', '$');
json_value
------------
aaa
(1 row)
SELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING text);
json_value
------------
aaa
(1 row)
SELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING char(5));
json_value
------------
aaa
(1 row)
SELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING char(2) ERROR ON ERROR);
ERROR: value too long for type character(2)
SELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING char(2));
json_value
------------
(1 row)
SELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING char(3) ERROR ON ERROR);
json_value
------------
aaa
(1 row)
SELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING json);
json_value
------------
"aaa"
(1 row)
SELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING jsonb);
json_value
------------
"aaa"
(1 row)
SELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING json ERROR ON ERROR);
json_value
------------
"aaa"
(1 row)
SELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING jsonb ERROR ON ERROR);
json_value
------------
"aaa"
(1 row)
SELECT JSON_VALUE(jsonb '"\"aaa\""', '$' RETURNING json);
json_value
------------
"\"aaa\""
(1 row)
SELECT JSON_VALUE(jsonb '"\"aaa\""', '$' RETURNING jsonb);
json_value
------------
"\"aaa\""
(1 row)
SELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING int);
json_value
------------
(1 row)
SELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING int ERROR ON ERROR);
ERROR: invalid input syntax for type integer: "aaa"
SELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING int DEFAULT 111 ON ERROR);
json_value
------------
111
(1 row)
SELECT JSON_VALUE(jsonb '"123"', '$' RETURNING int) + 234;
?column?
----------
357
(1 row)
SELECT JSON_VALUE(jsonb '"2017-02-20"', '$' RETURNING date) + 9;
?column?
------------
03-01-2017
(1 row)
-- Test NULL checks execution in domain types
CREATE DOMAIN sqljsonb_int_not_null AS int NOT NULL;
SELECT JSON_VALUE(jsonb 'null', '$' RETURNING sqljsonb_int_not_null);
ERROR: could not coerce ON ERROR expression (NULL) to the RETURNING type
DETAIL: domain sqljsonb_int_not_null does not allow null values
SELECT JSON_VALUE(jsonb 'null', '$' RETURNING sqljsonb_int_not_null ERROR ON ERROR);
ERROR: domain sqljsonb_int_not_null does not allow null values
SELECT JSON_VALUE(jsonb 'null', '$' RETURNING sqljsonb_int_not_null DEFAULT 2 ON EMPTY ERROR ON ERROR);
ERROR: domain sqljsonb_int_not_null does not allow null values
SELECT JSON_VALUE(jsonb '1', '$.a' RETURNING sqljsonb_int_not_null DEFAULT 2 ON EMPTY ERROR ON ERROR);
json_value
------------
2
(1 row)
SELECT JSON_VALUE(jsonb '1', '$.a' RETURNING sqljsonb_int_not_null DEFAULT NULL ON EMPTY ERROR ON ERROR);
ERROR: domain sqljsonb_int_not_null does not allow null values
CREATE TYPE rainbow AS ENUM ('red', 'orange', 'yellow', 'green', 'blue', 'purple');
CREATE DOMAIN rgb AS rainbow CHECK (VALUE IN ('red', 'green', 'blue'));
SELECT JSON_VALUE('"purple"'::jsonb, 'lax $[*]' RETURNING rgb);
json_value
------------
(1 row)
SELECT JSON_VALUE('"purple"'::jsonb, 'lax $[*]' RETURNING rgb ERROR ON ERROR);
ERROR: value for domain rgb violates check constraint "rgb_check"
SELECT JSON_VALUE(jsonb '[]', '$');
json_value
------------
(1 row)
SELECT JSON_VALUE(jsonb '[]', '$' ERROR ON ERROR);
ERROR: JSON path expression in JSON_VALUE must return single scalar item
SELECT JSON_VALUE(jsonb '{}', '$');
json_value
------------
(1 row)
SELECT JSON_VALUE(jsonb '{}', '$' ERROR ON ERROR);
ERROR: JSON path expression in JSON_VALUE must return single scalar item
SELECT JSON_VALUE(jsonb '1', '$.a');
json_value
------------
(1 row)
SELECT JSON_VALUE(jsonb '1', 'strict $.a' ERROR ON ERROR);
ERROR: jsonpath member accessor can only be applied to an object
SELECT JSON_VALUE(jsonb '1', 'strict $.a' DEFAULT 'error' ON ERROR);
json_value
------------
error
(1 row)
SELECT JSON_VALUE(jsonb '1', 'lax $.a' ERROR ON ERROR); -- NULL ON EMPTY
json_value
------------
(1 row)
SELECT JSON_VALUE(jsonb '1', 'lax $.a' ERROR ON EMPTY ERROR ON ERROR);
ERROR: no SQL/JSON item found for specified path
SELECT JSON_VALUE(jsonb '1', 'strict $.*' DEFAULT 2 ON ERROR);
json_value
------------
2
(1 row)
SELECT JSON_VALUE(jsonb '1', 'lax $.a' DEFAULT 2 ON ERROR);
json_value
------------
(1 row)
SELECT JSON_VALUE(jsonb '1', 'lax $.a' DEFAULT '2' ON EMPTY);
json_value
------------
2
(1 row)
SELECT JSON_VALUE(jsonb '1', 'lax $.a' NULL ON EMPTY DEFAULT '2' ON ERROR);
json_value
------------
(1 row)
SELECT JSON_VALUE(jsonb '1', 'lax $.a' DEFAULT '2' ON EMPTY DEFAULT '3' ON ERROR);
json_value
------------
2
(1 row)
SELECT JSON_VALUE(jsonb '1', 'lax $.a' ERROR ON EMPTY DEFAULT '3' ON ERROR);
ERROR: no SQL/JSON item found for specified path
SELECT JSON_VALUE(jsonb '[1,2]', '$[*]' ERROR ON ERROR);
ERROR: JSON path expression in JSON_VALUE must return single scalar item
SELECT JSON_VALUE(jsonb '[1,2]', '$[*]' DEFAULT '0' ON ERROR);
json_value
------------
0
(1 row)
SELECT JSON_VALUE(jsonb '[" "]', '$[*]' RETURNING int ERROR ON ERROR);
ERROR: invalid input syntax for type integer: " "
SELECT JSON_VALUE(jsonb '[" "]', '$[*]' RETURNING int DEFAULT 2 + 3 ON ERROR);
json_value
------------
5
(1 row)
SELECT JSON_VALUE(jsonb '["1"]', '$[*]' RETURNING int DEFAULT 2 + 3 ON ERROR);
json_value
------------
1
(1 row)
SELECT JSON_VALUE(jsonb '["1"]', '$[*]' RETURNING int FORMAT JSON); -- RETURNING FORMAT not allowed
ERROR: cannot specify FORMAT JSON in RETURNING clause of JSON_VALUE()
LINE 1: ...CT JSON_VALUE(jsonb '["1"]', '$[*]' RETURNING int FORMAT JSO...
^
-- RETUGNING pseudo-types not allowed
SELECT JSON_VALUE(jsonb '["1"]', '$[*]' RETURNING record);
ERROR: returning pseudo-types is not supported in SQL/JSON functions
SELECT
x,
JSON_VALUE(
jsonb '{"a": 1, "b": 2}',
'$.* ? (@ > $x)' PASSING x AS x
RETURNING int
DEFAULT -1 ON EMPTY
DEFAULT -2 ON ERROR
) y
FROM
generate_series(0, 2) x;
x | y
---+----
0 | -2
1 | 2
2 | -1
(3 rows)
SELECT JSON_VALUE(jsonb 'null', '$a' PASSING point ' (1, 2 )' AS a);
json_value
------------
(1,2)
(1 row)
SELECT JSON_VALUE(jsonb 'null', '$a' PASSING point ' (1, 2 )' AS a RETURNING point);
json_value
------------
(1,2)
(1 row)
SELECT JSON_VALUE(jsonb 'null', '$a' PASSING point ' (1, 2 )' AS a RETURNING point ERROR ON ERROR);
json_value
------------
(1,2)
(1 row)
-- Test PASSING and RETURNING date/time types
SELECT JSON_VALUE(jsonb 'null', '$ts' PASSING timestamptz '2018-02-21 12:34:56 +10' AS ts);
json_value
------------------------------
Tue Feb 20 18:34:56 2018 PST
(1 row)
SELECT JSON_VALUE(jsonb 'null', '$ts' PASSING timestamptz '2018-02-21 12:34:56 +10' AS ts RETURNING timestamptz);
json_value
------------------------------
Tue Feb 20 18:34:56 2018 PST
(1 row)
SELECT JSON_VALUE(jsonb 'null', '$ts' PASSING timestamptz '2018-02-21 12:34:56 +10' AS ts RETURNING timestamp);
json_value
--------------------------
Tue Feb 20 18:34:56 2018
(1 row)
SELECT JSON_VALUE(jsonb 'null', '$ts' PASSING date '2018-02-21 12:34:56 +10' AS ts RETURNING date);
json_value
------------
02-21-2018
(1 row)
SELECT JSON_VALUE(jsonb 'null', '$ts' PASSING time '2018-02-21 12:34:56 +10' AS ts RETURNING time);
json_value
------------
12:34:56
(1 row)
SELECT JSON_VALUE(jsonb 'null', '$ts' PASSING timetz '2018-02-21 12:34:56 +10' AS ts RETURNING timetz);
json_value
-------------
12:34:56+10
(1 row)
SELECT JSON_VALUE(jsonb 'null', '$ts' PASSING timestamp '2018-02-21 12:34:56 +10' AS ts RETURNING timestamp);
json_value
--------------------------
Wed Feb 21 12:34:56 2018
(1 row)
-- Also test RETURNING json[b]
SELECT JSON_VALUE(jsonb 'null', '$ts' PASSING timestamptz '2018-02-21 12:34:56 +10' AS ts RETURNING json);
json_value
-----------------------------
"2018-02-21T02:34:56+00:00"
(1 row)
SELECT JSON_VALUE(jsonb 'null', '$ts' PASSING timestamptz '2018-02-21 12:34:56 +10' AS ts RETURNING jsonb);
json_value
-----------------------------
"2018-02-21T02:34:56+00:00"
(1 row)
-- Test that numeric JSON values are coerced uniformly
select json_value('{"a": 1.234}', '$.a' returning int error on error);
ERROR: invalid input syntax for type integer: "1.234"
select json_value('{"a": "1.234"}', '$.a' returning int error on error);
ERROR: invalid input syntax for type integer: "1.234"
-- JSON_QUERY
SELECT JSON_VALUE(NULL::jsonb, '$');
json_value
------------
(1 row)
SELECT
JSON_QUERY(js, '$') AS "unspec",
JSON_QUERY(js, '$' WITHOUT WRAPPER) AS "without",
JSON_QUERY(js, '$' WITH CONDITIONAL WRAPPER) AS "with cond",
JSON_QUERY(js, '$' WITH UNCONDITIONAL ARRAY WRAPPER) AS "with uncond",
JSON_QUERY(js, '$' WITH ARRAY WRAPPER) AS "with"
FROM
(VALUES
(jsonb 'null'),
('12.3'),
('true'),
('"aaa"'),
('[1, null, "2"]'),
('{"a": 1, "b": [2]}')
) foo(js);
unspec | without | with cond | with uncond | with
--------------------+--------------------+--------------------+----------------------+----------------------
null | null | null | [null] | [null]
12.3 | 12.3 | 12.3 | [12.3] | [12.3]
true | true | true | [true] | [true]
"aaa" | "aaa" | "aaa" | ["aaa"] | ["aaa"]
[1, null, "2"] | [1, null, "2"] | [1, null, "2"] | [[1, null, "2"]] | [[1, null, "2"]]
{"a": 1, "b": [2]} | {"a": 1, "b": [2]} | {"a": 1, "b": [2]} | [{"a": 1, "b": [2]}] | [{"a": 1, "b": [2]}]
(6 rows)
SELECT
JSON_QUERY(js, 'strict $[*]') AS "unspec",
JSON_QUERY(js, 'strict $[*]' WITHOUT WRAPPER) AS "without",
JSON_QUERY(js, 'strict $[*]' WITH CONDITIONAL WRAPPER) AS "with cond",
JSON_QUERY(js, 'strict $[*]' WITH UNCONDITIONAL ARRAY WRAPPER) AS "with uncond",
JSON_QUERY(js, 'strict $[*]' WITH ARRAY WRAPPER) AS "with"
FROM
(VALUES
(jsonb '1'),
('[]'),
('[null]'),
('[12.3]'),
('[true]'),
('["aaa"]'),
('[[1, 2, 3]]'),
('[{"a": 1, "b": [2]}]'),
('[1, "2", null, [3]]')
) foo(js);
unspec | without | with cond | with uncond | with
--------------------+--------------------+---------------------+----------------------+----------------------
| | | |
| | | |
null | null | null | [null] | [null]
12.3 | 12.3 | 12.3 | [12.3] | [12.3]
true | true | true | [true] | [true]
"aaa" | "aaa" | "aaa" | ["aaa"] | ["aaa"]
[1, 2, 3] | [1, 2, 3] | [1, 2, 3] | [[1, 2, 3]] | [[1, 2, 3]]
{"a": 1, "b": [2]} | {"a": 1, "b": [2]} | {"a": 1, "b": [2]} | [{"a": 1, "b": [2]}] | [{"a": 1, "b": [2]}]
| | [1, "2", null, [3]] | [1, "2", null, [3]] | [1, "2", null, [3]]
(9 rows)
SELECT JSON_QUERY(jsonb '"aaa"', '$' RETURNING text);
json_query
------------
"aaa"
(1 row)
SELECT JSON_QUERY(jsonb '"aaa"', '$' RETURNING text KEEP QUOTES);
json_query
------------
"aaa"
(1 row)
SELECT JSON_QUERY(jsonb '"aaa"', '$' RETURNING text KEEP QUOTES ON SCALAR STRING);
json_query
------------
"aaa"
(1 row)
SELECT JSON_QUERY(jsonb '"aaa"', '$' RETURNING text OMIT QUOTES);
json_query
------------
aaa
(1 row)
SELECT JSON_QUERY(jsonb '"aaa"', '$' RETURNING text OMIT QUOTES ON SCALAR STRING);
json_query
------------
aaa
(1 row)
SELECT JSON_QUERY(jsonb '"aaa"', '$' OMIT QUOTES ERROR ON ERROR);
ERROR: invalid input syntax for type json
DETAIL: Token "aaa" is invalid.
CONTEXT: JSON data, line 1: aaa
SELECT JSON_QUERY(jsonb '"aaa"', '$' RETURNING json OMIT QUOTES ERROR ON ERROR);
ERROR: invalid input syntax for type json
DETAIL: Token "aaa" is invalid.
CONTEXT: JSON data, line 1: aaa
SELECT JSON_QUERY(jsonb '"aaa"', '$' RETURNING bytea FORMAT JSON OMIT QUOTES ERROR ON ERROR);
json_query
------------
\x616161
(1 row)
-- Behavior when a RETURNING type has typmod != -1
SELECT JSON_QUERY(jsonb '"aaa"', '$' RETURNING char(3) ERROR ON ERROR);
ERROR: value too long for type character(3)
SELECT JSON_QUERY(jsonb '"aaa"', '$' RETURNING char(3));
json_query
------------
(1 row)
SELECT JSON_QUERY(jsonb '"aaa"', '$' RETURNING char(3) OMIT QUOTES ERROR ON ERROR);
json_query
------------
aaa
(1 row)
SELECT JSON_QUERY(jsonb '"aaa"', '$.a' RETURNING char(2) OMIT QUOTES DEFAULT 'bb' ON EMPTY);
json_query
------------
bb
(1 row)
SELECT JSON_QUERY(jsonb '"aaa"', '$.a' RETURNING char(2) OMIT QUOTES DEFAULT '"bb"'::jsonb ON EMPTY);
json_query
------------
bb
(1 row)
-- OMIT QUOTES behavior should not be specified when WITH WRAPPER used:
-- Should fail
SELECT JSON_QUERY(jsonb '[1]', '$' WITH WRAPPER OMIT QUOTES);
ERROR: SQL/JSON QUOTES behavior must not be specified when WITH WRAPPER is used
LINE 1: SELECT JSON_QUERY(jsonb '[1]', '$' WITH WRAPPER OMIT QUOTES)...
^
SELECT JSON_QUERY(jsonb '[1]', '$' WITH CONDITIONAL WRAPPER OMIT QUOTES);
ERROR: SQL/JSON QUOTES behavior must not be specified when WITH WRAPPER is used
LINE 1: SELECT JSON_QUERY(jsonb '[1]', '$' WITH CONDITIONAL WRAPPER ...
^
-- Should succeed
SELECT JSON_QUERY(jsonb '["1"]', '$[*]' WITH CONDITIONAL WRAPPER KEEP QUOTES);
json_query
------------
"1"
(1 row)
SELECT JSON_QUERY(jsonb '["1"]', '$[*]' WITH UNCONDITIONAL WRAPPER KEEP QUOTES);
json_query
------------
["1"]
(1 row)
SELECT JSON_QUERY(jsonb '["1"]', '$[*]' WITH WRAPPER KEEP QUOTES);
json_query
------------
["1"]
(1 row)
SELECT JSON_QUERY(jsonb '["1"]', '$[*]' WITHOUT WRAPPER OMIT QUOTES);
json_query
------------
1
(1 row)
SELECT JSON_QUERY(jsonb '["1"]', '$[*]' WITHOUT WRAPPER KEEP QUOTES);
json_query
------------
"1"
(1 row)
-- test QUOTES behavior.
SELECT JSON_QUERY(jsonb'{"rec": "{1,2,3}"}', '$.rec' returning int[] omit quotes);
json_query
------------
{1,2,3}
(1 row)
SELECT JSON_QUERY(jsonb'{"rec": "{1,2,3}"}', '$.rec' returning int[] keep quotes);
json_query
------------
(1 row)
SELECT JSON_QUERY(jsonb'{"rec": "{1,2,3}"}', '$.rec' returning int[] keep quotes error on error);
ERROR: expected JSON array
SELECT JSON_QUERY(jsonb'{"rec": "[1,2]"}', '$.rec' returning int4range omit quotes);
json_query
------------
[1,3)
(1 row)
SELECT JSON_QUERY(jsonb'{"rec": "[1,2]"}', '$.rec' returning int4range keep quotes);
json_query
------------
(1 row)
SELECT JSON_QUERY(jsonb'{"rec": "[1,2]"}', '$.rec' returning int4range keep quotes error on error);
ERROR: malformed range literal: ""[1,2]""
DETAIL: Missing left parenthesis or bracket.
CREATE DOMAIN qf_char_domain AS char(1);
CREATE DOMAIN qf_jsonb_domain AS jsonb;
SELECT JSON_QUERY(jsonb '"1"', '$' RETURNING qf_char_domain OMIT QUOTES ERROR ON ERROR);
json_query
------------
1
(1 row)
SELECT JSON_QUERY(jsonb '"1"', '$' RETURNING qf_jsonb_domain OMIT QUOTES ERROR ON ERROR);
json_query
------------
1
(1 row)
DROP DOMAIN qf_char_domain, qf_jsonb_domain;
SELECT JSON_QUERY(jsonb '[]', '$[*]');
json_query
------------
(1 row)
SELECT JSON_QUERY(jsonb '[]', '$[*]' NULL ON EMPTY);
json_query
------------
(1 row)
SELECT JSON_QUERY(jsonb '[]', '$[*]' EMPTY ON EMPTY);
json_query
------------
[]
(1 row)
SELECT JSON_QUERY(jsonb '[]', '$[*]' EMPTY ARRAY ON EMPTY);
json_query
------------
[]
(1 row)
SELECT JSON_QUERY(jsonb '[]', '$[*]' EMPTY OBJECT ON EMPTY);
json_query
------------
{}
(1 row)
SELECT JSON_QUERY(jsonb '[]', '$[*]' ERROR ON EMPTY);
ERROR: no SQL/JSON item found for specified path
SELECT JSON_QUERY(jsonb '[]', '$[*]' DEFAULT '"empty"' ON EMPTY);
json_query
------------
"empty"
(1 row)
SELECT JSON_QUERY(jsonb '[]', '$[*]' ERROR ON EMPTY NULL ON ERROR);
ERROR: no SQL/JSON item found for specified path
SELECT JSON_QUERY(jsonb '[]', '$[*]' ERROR ON EMPTY EMPTY ARRAY ON ERROR);
ERROR: no SQL/JSON item found for specified path
SELECT JSON_QUERY(jsonb '[]', '$[*]' ERROR ON EMPTY EMPTY OBJECT ON ERROR);
ERROR: no SQL/JSON item found for specified path
SELECT JSON_QUERY(jsonb '[]', '$[*]' ERROR ON EMPTY ERROR ON ERROR);
ERROR: no SQL/JSON item found for specified path
SELECT JSON_QUERY(jsonb '[]', '$[*]' ERROR ON ERROR); -- NULL ON EMPTY
json_query
------------
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$[*]' ERROR ON ERROR);
ERROR: JSON path expression in JSON_QUERY must return single item when no wrapper is requested
HINT: Use the WITH WRAPPER clause to wrap SQL/JSON items into an array.
SELECT JSON_QUERY(jsonb '[1,2]', '$[*]' DEFAULT '"empty"' ON ERROR);
json_query
------------
"empty"
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$' RETURNING json);
json_query
------------
[1, 2]
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$' RETURNING json FORMAT JSON);
json_query
------------
[1, 2]
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$' RETURNING jsonb);
json_query
------------
[1, 2]
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$' RETURNING jsonb FORMAT JSON);
json_query
------------
[1, 2]
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$' RETURNING text);
json_query
------------
[1, 2]
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$' RETURNING char(10));
json_query
------------
[1, 2]
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$' RETURNING text FORMAT JSON);
json_query
------------
[1, 2]
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$' RETURNING bytea);
json_query
----------------
\x5b312c20325d
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$' RETURNING bytea FORMAT JSON);
json_query
----------------
\x5b312c20325d
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$[*]' RETURNING bytea EMPTY OBJECT ON ERROR);
json_query
------------
\x7b7d
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$[*]' RETURNING bytea FORMAT JSON EMPTY OBJECT ON ERROR);
json_query
------------
\x7b7d
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$[*]' RETURNING json EMPTY OBJECT ON ERROR);
json_query
------------
{}
(1 row)
SELECT JSON_QUERY(jsonb '[1,2]', '$[*]' RETURNING jsonb EMPTY OBJECT ON ERROR);
json_query
------------
{}
(1 row)
SELECT JSON_QUERY(jsonb '[3,4]', '$[*]' RETURNING bigint[] EMPTY OBJECT ON ERROR);
ERROR: could not coerce ON ERROR expression (EMPTY OBJECT) to the RETURNING type
DETAIL: expected JSON array
SELECT JSON_QUERY(jsonb '"[3,4]"', '$[*]' RETURNING bigint[] EMPTY OBJECT ON ERROR);
ERROR: could not coerce ON ERROR expression (EMPTY OBJECT) to the RETURNING type
DETAIL: expected JSON array
-- Coercion fails with quotes on
SELECT JSON_QUERY(jsonb '"123.1"', '$' RETURNING int2 error on error);
ERROR: invalid input syntax for type smallint: ""123.1""
SELECT JSON_QUERY(jsonb '"123.1"', '$' RETURNING int4 error on error);
ERROR: invalid input syntax for type integer: ""123.1""
SELECT JSON_QUERY(jsonb '"123.1"', '$' RETURNING int8 error on error);
ERROR: invalid input syntax for type bigint: ""123.1""
SELECT JSON_QUERY(jsonb '"123.1"', '$' RETURNING bool error on error);
ERROR: invalid input syntax for type boolean: ""123.1""
SELECT JSON_QUERY(jsonb '"123.1"', '$' RETURNING numeric error on error);
ERROR: invalid input syntax for type numeric: ""123.1""
SELECT JSON_QUERY(jsonb '"123.1"', '$' RETURNING real error on error);
ERROR: invalid input syntax for type real: ""123.1""
SELECT JSON_QUERY(jsonb '"123.1"', '$' RETURNING float8 error on error);
ERROR: invalid input syntax for type double precision: ""123.1""
-- Fine with OMIT QUOTES
SELECT JSON_QUERY(jsonb '"123.1"', '$' RETURNING int2 omit quotes error on error);
ERROR: invalid input syntax for type smallint: "123.1"
SELECT JSON_QUERY(jsonb '"123.1"', '$' RETURNING float8 omit quotes error on error);
json_query
------------
123.1
(1 row)
-- RETUGNING pseudo-types not allowed
SELECT JSON_QUERY(jsonb '[3,4]', '$[*]' RETURNING anyarray EMPTY OBJECT ON ERROR);
ERROR: returning pseudo-types is not supported in SQL/JSON functions
SELECT
x, y,
JSON_QUERY(
jsonb '[1,2,3,4,5,null]',
'$[*] ? (@ >= $x && @ <= $y)'
PASSING x AS x, y AS y
WITH CONDITIONAL WRAPPER
EMPTY ARRAY ON EMPTY
) list
FROM
generate_series(0, 4) x,
generate_series(0, 4) y;
x | y | list
---+---+--------------
0 | 0 | []
0 | 1 | 1
0 | 2 | [1, 2]
0 | 3 | [1, 2, 3]
0 | 4 | [1, 2, 3, 4]
1 | 0 | []
1 | 1 | 1
1 | 2 | [1, 2]
1 | 3 | [1, 2, 3]
1 | 4 | [1, 2, 3, 4]
2 | 0 | []
2 | 1 | []
2 | 2 | 2
2 | 3 | [2, 3]
2 | 4 | [2, 3, 4]
3 | 0 | []
3 | 1 | []
3 | 2 | []
3 | 3 | 3
3 | 4 | [3, 4]
4 | 0 | []
4 | 1 | []
4 | 2 | []
4 | 3 | []
4 | 4 | 4
(25 rows)
-- record type returning with quotes behavior.
CREATE TYPE comp_abc AS (a text, b int, c timestamp);
SELECT JSON_QUERY(jsonb'{"rec": "(abc,42,01.02.2003)"}', '$.rec' returning comp_abc omit quotes);
json_query
-------------------------------------
(abc,42,"Thu Jan 02 00:00:00 2003")
(1 row)
SELECT JSON_QUERY(jsonb'{"rec": "(abc,42,01.02.2003)"}', '$.rec' returning comp_abc keep quotes);
json_query
------------
(1 row)
SELECT JSON_QUERY(jsonb'{"rec": "(abc,42,01.02.2003)"}', '$.rec' returning comp_abc keep quotes error on error);
ERROR: cannot call populate_composite on a scalar
DROP TYPE comp_abc;
-- Extension: record types returning
CREATE TYPE sqljsonb_rec AS (a int, t text, js json, jb jsonb, jsa json[]);
CREATE TYPE sqljsonb_reca AS (reca sqljsonb_rec[]);
SELECT JSON_QUERY(jsonb '[{"a": 1, "b": "foo", "t": "aaa", "js": [1, "2", {}], "jb": {"x": [1, "2", {}]}}, {"a": 2}]', '$[0]' RETURNING sqljsonb_rec);
json_query
-----------------------------------------------------
(1,aaa,"[1, ""2"", {}]","{""x"": [1, ""2"", {}]}",)
(1 row)
SELECT JSON_QUERY(jsonb '[{"a": "a", "b": "foo", "t": "aaa", "js": [1, "2", {}], "jb": {"x": [1, "2", {}]}}, {"a": 2}]', '$[0]' RETURNING sqljsonb_rec ERROR ON ERROR);
ERROR: invalid input syntax for type integer: "a"
SELECT JSON_QUERY(jsonb '[{"a": "a", "b": "foo", "t": "aaa", "js": [1, "2", {}], "jb": {"x": [1, "2", {}]}}, {"a": 2}]', '$[0]' RETURNING sqljsonb_rec);
json_query
------------
(1 row)
SELECT * FROM unnest((JSON_QUERY(jsonb '{"jsa": [{"a": 1, "b": ["foo"]}, {"a": 2, "c": {}}, 123]}', '$' RETURNING sqljsonb_rec)).jsa);
unnest
------------------------
{"a": 1, "b": ["foo"]}
{"a": 2, "c": {}}
123
(3 rows)
SELECT * FROM unnest((JSON_QUERY(jsonb '{"reca": [{"a": 1, "t": ["foo", []]}, {"a": 2, "jb": [{}, true]}]}', '$' RETURNING sqljsonb_reca)).reca);
a | t | js | jb | jsa
---+-------------+----+------------+-----
1 | ["foo", []] | | |
2 | | | [{}, true] |
(2 rows)
SELECT JSON_QUERY(jsonb '[{"a": 1, "b": "foo", "t": "aaa", "js": [1, "2", {}], "jb": {"x": [1, "2", {}]}}, {"a": 2}]', '$[0]' RETURNING jsonpath);
json_query
------------
(1 row)
SELECT JSON_QUERY(jsonb '[{"a": 1, "b": "foo", "t": "aaa", "js": [1, "2", {}], "jb": {"x": [1, "2", {}]}}, {"a": 2}]', '$[0]' RETURNING jsonpath ERROR ON ERROR);
ERROR: syntax error at or near "{" of jsonpath input
-- Extension: array types returning
SELECT JSON_QUERY(jsonb '[1,2,null,"3"]', '$[*]' RETURNING int[] WITH WRAPPER);
json_query
--------------
{1,2,NULL,3}
(1 row)
SELECT JSON_QUERY(jsonb '[1,2,null,"a"]', '$[*]' RETURNING int[] WITH WRAPPER ERROR ON ERROR);
ERROR: invalid input syntax for type integer: "a"
SELECT JSON_QUERY(jsonb '[1,2,null,"a"]', '$[*]' RETURNING int[] WITH WRAPPER);
json_query
------------
(1 row)
SELECT * FROM unnest(JSON_QUERY(jsonb '[{"a": 1, "t": ["foo", []]}, {"a": 2, "jb": [{}, true]}]', '$' RETURNING sqljsonb_rec[]));
a | t | js | jb | jsa
---+-------------+----+------------+-----
1 | ["foo", []] | | |
2 | | | [{}, true] |
(2 rows)
-- Extension: domain types returning
SELECT JSON_QUERY(jsonb '{"a": 1}', '$.a' RETURNING sqljsonb_int_not_null);
json_query
------------
1
(1 row)
SELECT JSON_QUERY(jsonb '{"a": 1}', '$.b' RETURNING sqljsonb_int_not_null);
ERROR: could not coerce ON EMPTY expression (NULL) to the RETURNING type
DETAIL: domain sqljsonb_int_not_null does not allow null values
SELECT JSON_QUERY(jsonb '{"a": 1}', '$.b' RETURNING sqljsonb_int_not_null ERROR ON EMPTY ERROR ON ERROR);
ERROR: no SQL/JSON item found for specified path
-- Test timestamptz passing and output
SELECT JSON_QUERY(jsonb 'null', '$ts' PASSING timestamptz '2018-02-21 12:34:56 +10' AS ts);
json_query
-----------------------------
"2018-02-21T02:34:56+00:00"
(1 row)
SELECT JSON_QUERY(jsonb 'null', '$ts' PASSING timestamptz '2018-02-21 12:34:56 +10' AS ts RETURNING json);
json_query
-----------------------------
"2018-02-21T02:34:56+00:00"
(1 row)
SELECT JSON_QUERY(jsonb 'null', '$ts' PASSING timestamptz '2018-02-21 12:34:56 +10' AS ts RETURNING jsonb);
json_query
-----------------------------
"2018-02-21T02:34:56+00:00"
(1 row)
-- Test constraints
CREATE TABLE test_jsonb_constraints (
js text,
i int,
x jsonb DEFAULT JSON_QUERY(jsonb '[1,2]', '$[*]' WITH WRAPPER)
CONSTRAINT test_jsonb_constraint1
CHECK (js IS JSON)
CONSTRAINT test_jsonb_constraint2
CHECK (JSON_EXISTS(js::jsonb, '$.a' PASSING i + 5 AS int, i::text AS "TXT", array[1,2,3] as arr))
CONSTRAINT test_jsonb_constraint3
CHECK (JSON_VALUE(js::jsonb, '$.a' RETURNING int DEFAULT '12' ON EMPTY ERROR ON ERROR) > i)
CONSTRAINT test_jsonb_constraint4
CHECK (JSON_QUERY(js::jsonb, '$.a' WITH CONDITIONAL WRAPPER EMPTY OBJECT ON ERROR) = jsonb '[10]')
CONSTRAINT test_jsonb_constraint5
CHECK (JSON_QUERY(js::jsonb, '$.a' RETURNING char(5) OMIT QUOTES EMPTY ARRAY ON EMPTY) > 'a' COLLATE "C")
);
\d test_jsonb_constraints
Table "public.test_jsonb_constraints"
Column | Type | Collation | Nullable | Default
--------+---------+-----------+----------+--------------------------------------------------------------------------------------------
js | text | | |
i | integer | | |
x | jsonb | | | JSON_QUERY('[1, 2]'::jsonb, '$[*]' RETURNING jsonb WITH UNCONDITIONAL WRAPPER KEEP QUOTES)
Check constraints:
"test_jsonb_constraint1" CHECK (js IS JSON)
"test_jsonb_constraint2" CHECK (JSON_EXISTS(js::jsonb, '$."a"' PASSING i + 5 AS "int", i::text AS "TXT", ARRAY[1, 2, 3] AS arr))
"test_jsonb_constraint3" CHECK (JSON_VALUE(js::jsonb, '$."a"' RETURNING integer DEFAULT 12 ON EMPTY ERROR ON ERROR) > i)
"test_jsonb_constraint4" CHECK (JSON_QUERY(js::jsonb, '$."a"' RETURNING jsonb WITH CONDITIONAL WRAPPER KEEP QUOTES EMPTY OBJECT ON ERROR) = '[10]'::jsonb)
"test_jsonb_constraint5" CHECK (JSON_QUERY(js::jsonb, '$."a"' RETURNING character(5) WITHOUT WRAPPER OMIT QUOTES EMPTY ARRAY ON EMPTY) > ('a'::bpchar COLLATE "C"))
SELECT check_clause
FROM information_schema.check_constraints
WHERE constraint_name LIKE 'test_jsonb_constraint%'
ORDER BY 1;
check_clause
----------------------------------------------------------------------------------------------------------------------------------------
(JSON_QUERY((js)::jsonb, '$."a"' RETURNING character(5) WITHOUT WRAPPER OMIT QUOTES EMPTY ARRAY ON EMPTY) > ('a'::bpchar COLLATE "C"))
(JSON_QUERY((js)::jsonb, '$."a"' RETURNING jsonb WITH CONDITIONAL WRAPPER KEEP QUOTES EMPTY OBJECT ON ERROR) = '[10]'::jsonb)
(JSON_VALUE((js)::jsonb, '$."a"' RETURNING integer DEFAULT 12 ON EMPTY ERROR ON ERROR) > i)
(js IS JSON)
JSON_EXISTS((js)::jsonb, '$."a"' PASSING (i + 5) AS "int", (i)::text AS "TXT", ARRAY[1, 2, 3] AS arr)
(5 rows)
SELECT pg_get_expr(adbin, adrelid)
FROM pg_attrdef
WHERE adrelid = 'test_jsonb_constraints'::regclass
ORDER BY 1;
pg_get_expr
--------------------------------------------------------------------------------------------
JSON_QUERY('[1, 2]'::jsonb, '$[*]' RETURNING jsonb WITH UNCONDITIONAL WRAPPER KEEP QUOTES)
(1 row)
INSERT INTO test_jsonb_constraints VALUES ('', 1);
ERROR: new row for relation "test_jsonb_constraints" violates check constraint "test_jsonb_constraint1"
DETAIL: Failing row contains (, 1, [1, 2]).
INSERT INTO test_jsonb_constraints VALUES ('1', 1);
ERROR: new row for relation "test_jsonb_constraints" violates check constraint "test_jsonb_constraint2"
DETAIL: Failing row contains (1, 1, [1, 2]).
INSERT INTO test_jsonb_constraints VALUES ('[]');
ERROR: new row for relation "test_jsonb_constraints" violates check constraint "test_jsonb_constraint2"
DETAIL: Failing row contains ([], null, [1, 2]).
INSERT INTO test_jsonb_constraints VALUES ('{"b": 1}', 1);
ERROR: new row for relation "test_jsonb_constraints" violates check constraint "test_jsonb_constraint2"
DETAIL: Failing row contains ({"b": 1}, 1, [1, 2]).
INSERT INTO test_jsonb_constraints VALUES ('{"a": 1}', 1);
ERROR: new row for relation "test_jsonb_constraints" violates check constraint "test_jsonb_constraint3"
DETAIL: Failing row contains ({"a": 1}, 1, [1, 2]).
INSERT INTO test_jsonb_constraints VALUES ('{"a": 10}', 1);
ERROR: new row for relation "test_jsonb_constraints" violates check constraint "test_jsonb_constraint4"
DETAIL: Failing row contains ({"a": 10}, 1, [1, 2]).
DROP TABLE test_jsonb_constraints;
-- Test mutabilily of query functions
CREATE TABLE test_jsonb_mutability(js jsonb, b int);
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$'));
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a[0]'));
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.time()'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.date()'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.time_tz()'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.timestamp()'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.timestamp_tz()'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.date() < $.time_tz())'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.date() < $.time())'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.time() < $.time())'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.time() < $.time_tz())'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.timestamp() < $.timestamp_tz())'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.timestamp_tz() < $.timestamp_tz())'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.time() < $.datetime("HH:MI TZH"))'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.date() < $.datetime("HH:MI TZH"))'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.timestamp() < $.datetime("HH:MI TZH"))'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.timestamp() < $.datetime("HH:MI"))'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.timestamp_tz() < $.datetime("HH:MI TZH"))'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.timestamp_tz() < $.datetime("HH:MI"))'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.date() < $x' PASSING '12:34'::timetz AS x));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.date() < $x' PASSING '1234'::int AS x));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.timestamp(2) < $.timestamp(3))'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.datetime()'));
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@ < $.datetime())'));
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.datetime() < $.datetime())'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.datetime() < $.datetime("HH:MI TZH"))'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.datetime("HH:MI TZH") < $.datetime("HH:MI TZH"))'));
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.datetime("HH:MI") < $.datetime("YY-MM-DD HH:MI"))'));
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.a ? (@.datetime("HH:MI TZH") < $.datetime("YY-MM-DD HH:MI"))'));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.datetime("HH:MI TZH") < $x' PASSING '12:34'::timetz AS x));
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.datetime("HH:MI TZH") < $y' PASSING '12:34'::timetz AS x));
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.datetime() < $x' PASSING '12:34'::timetz AS x));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.datetime() < $x' PASSING '1234'::int AS x));
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.datetime() ? (@ == $x)' PASSING '12:34'::time AS x));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$.datetime("YY-MM-DD") ? (@ == $x)' PASSING '2020-07-14'::date AS x));
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$[1, $.a ? (@.datetime() == $x)]' PASSING '12:34'::time AS x));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$[1, 0 to $.a ? (@.datetime() == $x)]' PASSING '12:34'::time AS x));
ERROR: functions in index expression must be marked IMMUTABLE
CREATE INDEX ON test_jsonb_mutability (JSON_QUERY(js, '$[1, $.a ? (@.datetime("HH:MI") == $x)]' PASSING '12:34'::time AS x));
CREATE INDEX ON test_jsonb_mutability (JSON_VALUE(js, '$' DEFAULT random()::int ON ERROR));
ERROR: functions in index expression must be marked IMMUTABLE
-- DEFAULT expression
CREATE OR REPLACE FUNCTION ret_setint() RETURNS SETOF integer AS
$$
BEGIN
RETURN QUERY EXECUTE 'select 1 union all select 1';
END;
$$
LANGUAGE plpgsql IMMUTABLE;
SELECT JSON_QUERY(js, '$' RETURNING int DEFAULT ret_setint() ON ERROR) FROM test_jsonb_mutability;
ERROR: DEFAULT expression must not return a set
LINE 1: SELECT JSON_QUERY(js, '$' RETURNING int DEFAULT ret_setint(...
^
SELECT JSON_QUERY(js, '$' RETURNING int DEFAULT b + 1 ON ERROR) FROM test_jsonb_mutability;
ERROR: DEFAULT expression must not contain column references
LINE 1: SELECT JSON_QUERY(js, '$' RETURNING int DEFAULT b + 1 ON ER...
^
SELECT JSON_QUERY(js, '$' RETURNING int DEFAULT sum(1) over() ON ERROR) FROM test_jsonb_mutability;
ERROR: can only specify a constant, non-aggregate function, or operator expression for DEFAULT
LINE 1: SELECT JSON_QUERY(js, '$' RETURNING int DEFAULT sum(1) over...
^
SELECT JSON_QUERY(js, '$' RETURNING int DEFAULT (SELECT 1) ON ERROR) FROM test_jsonb_mutability;
ERROR: can only specify a constant, non-aggregate function, or operator expression for DEFAULT
LINE 1: SELECT JSON_QUERY(js, '$' RETURNING int DEFAULT (SELECT 1) ...
^
DROP TABLE test_jsonb_mutability;
DROP FUNCTION ret_setint;
CREATE DOMAIN queryfuncs_test_domain AS text CHECK (value <> 'foo');
SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING queryfuncs_test_domain DEFAULT 'foo'::queryfuncs_test_domain ON EMPTY);
ERROR: could not coerce ON EMPTY expression (DEFAULT) to the RETURNING type
DETAIL: value for domain queryfuncs_test_domain violates check constraint "queryfuncs_test_domain_check"
SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING queryfuncs_test_domain DEFAULT 'foo1'::queryfuncs_test_domain ON EMPTY);
json_value
------------
foo1
(1 row)
SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING queryfuncs_test_domain DEFAULT '"foo1"'::jsonb::text ON EMPTY);
json_value
------------
"foo1"
(1 row)
SELECT JSON_VALUE(jsonb '{"d1": "foo"}', '$.a2' RETURNING queryfuncs_test_domain DEFAULT 'foo1'::queryfuncs_test_domain ON EMPTY);
json_value
------------
foo1
(1 row)
-- Check the cases where a coercion-related expression is masking an
-- unsupported expressions
-- CoerceViaIO
SELECT JSON_QUERY('"a"', '$.a' RETURNING int DEFAULT (SELECT '"1"')::jsonb ON ERROR);
ERROR: can only specify a constant, non-aggregate function, or operator expression for DEFAULT
LINE 1: ...CT JSON_QUERY('"a"', '$.a' RETURNING int DEFAULT (SELECT '"...
^
-- CoerceToDomain
SELECT JSON_QUERY('"a"', '$.a' RETURNING queryfuncs_test_domain DEFAULT (select '"1"')::queryfuncs_test_domain ON ERROR);
ERROR: can only specify a constant, non-aggregate function, or operator expression for DEFAULT
LINE 1: ...', '$.a' RETURNING queryfuncs_test_domain DEFAULT (select '"...
^
-- RelabelType
SELECT JSON_QUERY('"a"', '$.a' RETURNING int DEFAULT (SELECT 1)::oid::int ON ERROR);
ERROR: can only specify a constant, non-aggregate function, or operator expression for DEFAULT
LINE 1: ...CT JSON_QUERY('"a"', '$.a' RETURNING int DEFAULT (SELECT 1)...
^
-- ArrayCoerceExpr
SELECT JSON_QUERY('"a"', '$.a' RETURNING int[] DEFAULT (SELECT '{1}')::oid[]::int[] ON ERROR);
ERROR: can only specify a constant, non-aggregate function, or operator expression for DEFAULT
LINE 1: ... JSON_QUERY('"a"', '$.a' RETURNING int[] DEFAULT (SELECT '{...
^
-- CollateExpr
SELECT JSON_QUERY('"a"', '$.a' RETURNING int[] DEFAULT (SELECT '{1}')::text COLLATE "C" ON ERROR);
ERROR: can only specify a constant, non-aggregate function, or operator expression for DEFAULT
LINE 1: ... JSON_QUERY('"a"', '$.a' RETURNING int[] DEFAULT (SELECT '{...
^
-- ConvertRowtypeExpr
CREATE TABLE someparent (a int);
CREATE TABLE somechild () INHERITS (someparent);
SELECT JSON_QUERY('"a"', '$.a' RETURNING someparent DEFAULT (SELECT '(1)')::somechild::someparent ON ERROR);
ERROR: can only specify a constant, non-aggregate function, or operator expression for DEFAULT
LINE 1: ..._QUERY('"a"', '$.a' RETURNING someparent DEFAULT (SELECT '(...
^
DROP DOMAIN queryfuncs_test_domain;
DROP TABLE someparent, somechild;
-- Extension: non-constant JSON path
SELECT JSON_EXISTS(jsonb '{"a": 123}', '$' || '.' || 'a');
json_exists
-------------
t
(1 row)
SELECT JSON_VALUE(jsonb '{"a": 123}', '$' || '.' || 'a');
json_value
------------
123
(1 row)
SELECT JSON_VALUE(jsonb '{"a": 123}', '$' || '.' || 'b' DEFAULT 'foo' ON EMPTY);
json_value
------------
foo
(1 row)
SELECT JSON_QUERY(jsonb '{"a": 123}', '$' || '.' || 'a');
json_query
------------
123
(1 row)
SELECT JSON_QUERY(jsonb '{"a": 123}', '$' || '.' || 'a' WITH WRAPPER);
json_query
------------
[123]
(1 row)
-- Should fail (invalid path)
SELECT JSON_QUERY(jsonb '{"a": 123}', 'error' || ' ' || 'error');
ERROR: syntax error at or near " " of jsonpath input
-- Non-jsonb inputs automatically coerced to jsonb
SELECT JSON_EXISTS(json '{"a": 123}', '$' || '.' || 'a');
json_exists
-------------
t
(1 row)
SELECT JSON_QUERY(NULL FORMAT JSON, '$');
json_query
------------
(1 row)
-- Test non-const jsonpath
CREATE TEMP TABLE jsonpaths (path) AS SELECT '$';
SELECT json_value('"aaa"', path RETURNING json) FROM jsonpaths;
json_value
------------
"aaa"
(1 row)
-- Test PASSING argument parsing
SELECT JSON_QUERY(jsonb 'null', '$xyz' PASSING 1 AS xy);
ERROR: could not find jsonpath variable "xyz"
SELECT JSON_QUERY(jsonb 'null', '$xy' PASSING 1 AS xyz);
ERROR: could not find jsonpath variable "xy"
SELECT JSON_QUERY(jsonb 'null', '$xyz' PASSING 1 AS xyz);
json_query
------------
1
(1 row)
SELECT JSON_QUERY(jsonb 'null', '$Xyz' PASSING 1 AS Xyz);
ERROR: could not find jsonpath variable "Xyz"
SELECT JSON_QUERY(jsonb 'null', '$Xyz' PASSING 1 AS "Xyz");
json_query
------------
1
(1 row)
SELECT JSON_QUERY(jsonb 'null', '$"Xyz"' PASSING 1 AS "Xyz");
json_query
------------
1
(1 row)
-- Test ON ERROR / EMPTY value validity for the function; all fail.
SELECT JSON_EXISTS(jsonb '1', '$' DEFAULT 1 ON ERROR);
ERROR: invalid ON ERROR behavior
LINE 1: SELECT JSON_EXISTS(jsonb '1', '$' DEFAULT 1 ON ERROR);
^
DETAIL: Only ERROR, TRUE, FALSE, or UNKNOWN is allowed in ON ERROR for JSON_EXISTS().
SELECT JSON_VALUE(jsonb '1', '$' EMPTY ON ERROR);
ERROR: invalid ON ERROR behavior
LINE 1: SELECT JSON_VALUE(jsonb '1', '$' EMPTY ON ERROR);
^
DETAIL: Only ERROR, NULL, or DEFAULT expression is allowed in ON ERROR for JSON_VALUE().
SELECT JSON_QUERY(jsonb '1', '$' TRUE ON ERROR);
ERROR: invalid ON ERROR behavior
LINE 1: SELECT JSON_QUERY(jsonb '1', '$' TRUE ON ERROR);
^
DETAIL: Only ERROR, NULL, EMPTY ARRAY, EMPTY OBJECT, or DEFAULT expression is allowed in ON ERROR for JSON_QUERY().
-- Test implicit coercion to a domain over fixed-length type specified in
-- RETURNING
CREATE DOMAIN queryfuncs_char2 AS char(2);
CREATE DOMAIN queryfuncs_char2_chk AS char(2) CHECK (VALUE NOT IN ('12'));
SELECT JSON_QUERY(jsonb '123', '$' RETURNING queryfuncs_char2 ERROR ON ERROR);
ERROR: value too long for type character(2)
SELECT JSON_QUERY(jsonb '123', '$' RETURNING queryfuncs_char2 DEFAULT '1' ON ERROR);
json_query
------------
1
(1 row)
SELECT JSON_QUERY(jsonb '123', '$' RETURNING queryfuncs_char2_chk ERROR ON ERROR);
ERROR: value too long for type character(2)
SELECT JSON_QUERY(jsonb '123', '$' RETURNING queryfuncs_char2_chk DEFAULT '1' ON ERROR);
json_query
------------
1
(1 row)
SELECT JSON_VALUE(jsonb '123', '$' RETURNING queryfuncs_char2 ERROR ON ERROR);
ERROR: value too long for type character(2)
SELECT JSON_VALUE(jsonb '123', '$' RETURNING queryfuncs_char2 DEFAULT 1 ON ERROR);
json_value
------------
1
(1 row)
SELECT JSON_VALUE(jsonb '123', '$' RETURNING queryfuncs_char2_chk ERROR ON ERROR);
ERROR: value too long for type character(2)
SELECT JSON_VALUE(jsonb '123', '$' RETURNING queryfuncs_char2_chk DEFAULT 1 ON ERROR);
json_value
------------
1
(1 row)
DROP DOMAIN queryfuncs_char2, queryfuncs_char2_chk;
-- Test coercion to domain over another fixed-length type of the ON ERROR /
-- EMPTY expressions. Ask user to cast the DEFAULT expression explicitly if
-- automatic casting cannot be done, for example, from int to bit(2).
CREATE DOMAIN queryfuncs_d_varbit3 AS varbit(3) CHECK (VALUE <> '01');
SELECT JSON_VALUE(jsonb '1234', '$' RETURNING queryfuncs_d_varbit3 DEFAULT '111111' ON ERROR);
ERROR: bit string too long for type bit varying(3)
SELECT JSON_VALUE(jsonb '1234', '$' RETURNING queryfuncs_d_varbit3 DEFAULT '010' ON ERROR);
json_value
------------
010
(1 row)
SELECT JSON_VALUE(jsonb '1234', '$' RETURNING queryfuncs_d_varbit3 DEFAULT '01' ON ERROR);
ERROR: could not coerce ON ERROR expression (DEFAULT) to the RETURNING type
DETAIL: value for domain queryfuncs_d_varbit3 violates check constraint "queryfuncs_d_varbit3_check"
SELECT JSON_VALUE(jsonb '"111"', '$' RETURNING bit(2) ERROR ON ERROR);
ERROR: bit string length 3 does not match type bit(2)
SELECT JSON_VALUE(jsonb '1234', '$' RETURNING bit(3) DEFAULT 1 ON ERROR);
ERROR: cannot cast behavior expression of type integer to bit
LINE 1: ...VALUE(jsonb '1234', '$' RETURNING bit(3) DEFAULT 1 ON ERROR...
^
HINT: You will need to explicitly cast the expression to type bit.
SELECT JSON_VALUE(jsonb '1234', '$' RETURNING bit(3) DEFAULT 1::bit(3) ON ERROR);
json_value
------------
001
(1 row)
SELECT JSON_VALUE(jsonb '"111"', '$.a' RETURNING bit(3) DEFAULT '1111' ON EMPTY);
ERROR: bit string length 4 does not match type bit(3)
DROP DOMAIN queryfuncs_d_varbit3;
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