select json_valid('[1, 2]');
select json_valid('"string"}');
select json_valid('{"key1":1, "key2":[2,3]}');
select json_valid('[false, true, null]');
select json_valid(repeat('[', 1000));
select json_valid(repeat('{"a":', 1000));

select json_value('{"key1":123}', '$.key2');
select json_value('{"key1":123}', '$.key1');
select json_value('{"key1":[1,2,3]}', '$.key1');
select json_value('{"key1": [1,2,3], "key1":123}', '$.key1');

select JSON_VALUE('{ "x": [0,1], "y": "[0,1]", "z": "Mon\\\"t\\\"y" }','$.z') as exp;

select json_query('{"key1":{"a":1, "b":[1,2]}}', '$.key2');
select json_query('{"key1":{"a":1, "b":[1,2]}}', '$.key1');
select json_query('{"key1": 1}', '$.key1');
select json_query('{"key1":123, "key1": [1,2,3]}', '$.key1');
select json_query('{"key1":123, "key1": [1,2,3]}', concat('$', repeat('.k', 1000))) as exp;

select json_array();
select json_array(1);
#enable after fix MDEV-28649
--disable_view_protocol
select json_array(1, "text", false, null);

select json_array_append('["a", "b"]', '$', FALSE);
--enable_view_protocol
select json_array_append('{"k1":1, "k2":["a", "b"]}', '$.k2', 2);
select json_array_append('["a", ["b", "c"], "d"]', '$[0]', 2);

select json_array_insert('["a", {"b": [1, 2]}, [3, 4]]', '$[1]', 'x');
select json_array_insert('["a", {"b": [1, 2]}, [3, 4]]', '$[2]', 'x');
select json_array_insert('["a", {"b": [1, 2]}, [3, 4]]', '$[3]', 'x');
select json_array_insert('["a", {"b": [1, 2]}, [3, 4]]', '$[4]', 'x');
select json_array_insert('["a", {"b": [1, 2]}, [3, 4]]', '$[1].b[0]', 'x') as exp;
select json_array_insert('true', '$', 1);
select json_array_insert('["a", {"b": [1, 2]}, [3, 4]]', '$[2][1]', 'y') as exp;

select json_contains('{"k1":123, "k2":345}', '123', '$.k1');
select json_contains('"you"', '"you"');
select json_contains('"youth"', '"you"');
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
select json_contains('[1]', '[1]', '$', '$[0]');
select json_contains('', '', '$');
select json_contains('null', 'null', '$');
select json_contains('"10"', '"10"', '$');
select json_contains('"10"', '10', '$');
select json_contains('10.1', '10', '$');
select json_contains('10.0', '10', '$');
select json_contains('[1]', '1');
select json_contains('[2, 1]', '1');
select json_contains('[2, [2, 3], 1]', '1');
select json_contains('[4, [2, 3], 1]', '2');
select json_contains('[2, 1]', '[1, 2]');
select json_contains('[2, 1]', '[1, 0, 2]');
select json_contains('[2, 0, 3, 1]', '[1, 2]');
select json_contains('{"b":[1,2], "a":1}', '{"a":1, "b":2}');
select json_contains('{"a":1}', '{}');
select json_contains('[1, {"a":1}]', '{}');
select json_contains('[1, {"a":1}]', '{"a":1}');
select json_contains('[{"abc":"def", "def":"abc"}]', '["foo","bar"]');
select json_contains('[{"abc":"def", "def":"abc"}, "bar"]', '["bar", {}]') as exp;
select json_contains('[{"a":"b"},{"c":"d"}]','{"c":"d"}');

select json_contains_path('{"key1":1, "key2":[2,3]}', "oNE", "$.key2[1]") as exp;
select json_contains_path('{"key1":1, "key2":[2,3]}', "oNE", "$.key2[10]") as exp;
select json_contains_path('{"key1":1, "key2":[2,3]}', "oNE", "$.ma") as exp;
select json_contains_path('{"key1":1, "key2":[2,3]}', "one", "$.key1") as exp;
select json_contains_path('{"key1":1, "key2":[2,3]}', "one", "$.key1", "$.ma") as exp;
select json_contains_path('{"key1":1, "key2":[2,3]}', "aLl", "$.key1", "$.ma") as exp;
select json_contains_path('{"key1":1, "key2":[2,3]}', "aLl", "$.key1", "$.key2") as exp;
select json_contains_path('{ "a": true }', NULL, '$.a' ) as exp;
select json_contains_path('{ "a": true }', 'all', NULL ) as exp;
select json_contains_path('{"a":{"b":"c"}}', 'one', '$.a.*') as exp;
 
select json_extract('{"key1":"asd", "key2":[2,3]}', "$.key1") as exp;
select json_extract('{"key1":"asd", "key2":[2,3]}', "$.keyX", "$.keyY") as exp;
select json_extract('{"key1":"asd", "key2":[2,3]}', "$.key1", "$.key2") as exp;
select json_extract('{"key1":5, "key2":[2,3]}', "$.key1", "$.key2") as exp;
select json_extract('{"key0":true, "key1":"qwe"}', "$.key1") as exp;
select json_extract(json_object('foo', 'foobar'),'$') as exp;
select json_extract('[10, 20, [30, 40]]', '$[2][*]') as exp;
select json_extract('[10, 20, [{"a":3}, 30, 40]]', '$[2][*]') as exp;
select json_extract('1', '$') as exp;
select json_extract('[10, 20, [30, 40], 1, 10]', '$[1]') as exp;
select json_extract('[10, 20, [30, 40], 1, 10]', '$[1]', '$[25]') as exp;
select json_extract( '[{"a": [3, 4]}, {"b": 2}]', '$[0].a', '$[1].a') as exp;

#enable after MDEV-32454 fix
--disable_view_protocol
select json_insert('{"a":1, "b":{"c":1}, "d":[1, 2]}', '$.b.k1', 'word') as exp;
select json_insert('{"a":1, "b":{"c":1}, "d":[1, 2]}', '$.d[3]', 3) as exp;
select json_insert('{"a":1, "b":{"c":1}, "d":[1, 2]}', '$.a[2]', 2) as exp;
select json_insert('{"a":1, "b":{"c":1}, "d":[1, 2]}', '$.b.c', 'word') as exp;

select json_set('{ "a": 1, "b": [2, 3]}', '$.a', 10, '$.c', '[true, false]') as exp;
--enable_view_protocol

select json_replace('{ "a": 1, "b": [2, 3]}', '$.a', 10, '$.c', '[true, false]') as exp;
select json_replace('{ "a": 1, "b": [2, 3]}', '$.a', 10, '$.b', '[true, false]') as exp;

set @j = '["a", ["b", "c"], "d"]';
select json_remove(@j, '$[0]');
select json_remove(@j, '$[1]');
select json_remove(@j, '$[2]');
set @j = '{"a": 1, "b": [2, 3]}';
select json_remove(@j, '$.b');
select json_remove(@j, '$.a');

select json_object();
select json_object("ki", 1, "mi", "ya");
create table t1 as select json_object('id', 87, 'name', 'carrot') as f;
show create table t1;
select * from t1;
drop table t1;

select json_exists('{"key1":"xxxx", "key2":[1, 2, 3]}', "$.key2") as ex;
select json_exists('{"key1":"xxxx", "key2":[1, 2, 3]}', "$.key2[1]") as ex;
select json_exists('{"key1":"xxxx", "key2":[1, 2, 3]}', "$.key2[10]") as ex;

select json_quote('"string"');
create table t1 as select json_quote('foo');
select * from t1;
show create table t1;
drop table t1;

--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
select json_merge('string');
select json_merge('string', 123);
select json_merge('"string"', 123);
select json_merge('[1, 2]', '[true, false]');
select json_merge('{"1": 2}', '{"true": false}');
select json_merge('{"1": 2}', '{"true": false}', '{"3": 4}');
select json_merge(NULL,json_object('foo', 1));
select json_merge('a','b');
select json_merge('{"a":"b"}','{"c":"d"}');
SELECT JSON_MERGE('[1, 2]', '{"id": 47}');

#enable after MDEV-32454 fix
--disable_view_protocol
select json_type('{"k1":123, "k2":345}');
select json_type('[123, "k2", 345]');
select json_type("true");
select json_type('123');
select json_type('123.12');
--enable_view_protocol

select json_keys('{"a":{"c":1, "d":2}, "b":2}');
select json_keys('{"a":{"c":1, "d":2}, "b":2}', "$.a");
select json_keys('{"a":{"c":1, "d":2}, "b":2}', "$.b");
select json_keys('foo');
#
# mdev-12789 JSON_KEYS returns duplicate keys twice
#
select json_keys('{"a":{"c":1, "d":2}, "b":2, "c":1, "a":3, "b":1, "c":2}') as ex;
select json_keys('{"c1": "value 1", "c1": "value 2"}') as ex;

SET @j = '["abc", [{"k": "10"}, "def"], {"x":"abc"}, {"y":"bcd"}]';
select json_search(@j, 'one', 'abc') as ex;
select json_search(@j, 'all', 'abc') as ex;
select json_search(@j, 'all', 'abc', NULL, '$[2]') as ex;
select json_search(@j, 'all', 'abc', NULL, '$') as ex;
select json_search(@j, 'all', '10', NULL, '$') as ex;
select json_search(@j, 'all', '10', NULL, '$[*]') as ex;
select json_search(@j, 'all', '10', NULL, '$[*][0].k') as ex;
select json_search(@j, 'all', '10', NULL, '$**.k') as ex;
create table t1( json_col text );
insert into t1 values
('{ "a": "foobar" }'),
  ('{ "a": "foobar", "b": "focus", "c": [ "arm", "foot", "shoulder" ] }');
select json_search( json_col, 'all', 'foot' ) as ex from t1;
drop table t1;


#enable after MDEV-32454 fix
--disable_view_protocol
select json_unquote('"abc"');
select json_unquote('abc');
--enable_view_protocol
#
# MDEV-13703 Illegal mix of collations for operation 'json_object' on using JSON_UNQUOTE as an argument.
#
create table t1 (c VARCHAR(8)) DEFAULT CHARSET=latin1;
insert into t1 values ('abc'),('def');
 
select json_object('foo', json_unquote(json_object('bar', c)),'qux', c) as fld from t1;
drop table t1;


#enable after MDEV-32454 fix
--disable_view_protocol
select json_object("a", json_object("b", "abcd"));
select json_object("a", '{"b": "abcd"}');
select json_object("a", json_compact('{"b": "abcd"}'));
--enable_view_protocol


select json_compact(NULL);
select json_depth(json_compact(NULL));
select json_depth('[[], {}]');
select json_depth('[[[1,2,3],"s"], {}, []]');
select json_depth('[10, {"a": 20}]');

select json_length('');
select json_length('{}');
select json_length('[1, 2, {"a": 3}]');
select json_length('{"a": 1, "b": {"c": 30}}', '$.b');
select json_length('{"a": 1, "b": {"c": 30}}');
select json_length('{}{');

create table json (j INT);
show create table json;
drop table json;

select json_length( '[ 1, [ 2, 3, 4 ], 5 ]', '$[2]' ) as ex;
select json_length( '[ 1, [ 2, 3, 4 ], 5 ]', '$[2][0]' ) as ex;
select json_length( '[ 1, [ 2, 3, 4 ], 5 ]', '$[2][0][0]' ) as ex;
select json_length( '[ 1, [ 2, 3, 4 ], 5 ]', '$[2][0][0][0]' ) as ex;
select json_length( '[ 1, [ 2, 3, 4 ], {"a":5, "b":6} ]', '$[2]' ) as ex;
select json_length( '[ 1, [ 2, 3, 4 ], {"a":5, "b":6} ]', '$[2][0]' ) as ex;
select json_length( '[ 1, [ 2, 3, 4 ], {"a":5, "b":6} ]', '$[2][0][0]' ) as ex;
select json_length( '[ 1, [ 2, 3, 4 ], {"a":5, "b":6} ]', '$[2][0][0][0]' ) as ex;
select json_length( '{"a":{"b":{"d":1}}, "a":{"c":{"d":1, "j":2}}}', '$.a[0][0][0].c' ) as ex;

select json_set('1', '$[0]', 100);
select json_set('1', '$[0][0]', 100);
select json_set('1', '$[1]', 100);
select json_set('{"a":12}', '$[0]', 100);
select json_set('{"a":12}', '$[0].a', 100);
select json_set('{"a":12}', '$[0][0].a', 100);
select json_set('{"a":12}', '$[0][1].a', 100);

select json_value('{"\\"key1":123}', '$."\\"key1"') as ex;
select json_value('{"\\"key1\\"":123}', '$."\\"key1\\""') as ex;
select json_value('{"key 1":123}', '$."key 1"') as ex;

select json_contains_path('{"a":[{"c":[1,{"a":[0,1,2]},3]}], "b":[1,2,3]}', 'one', "$**.a[2]") as ex;
select json_contains_path('{"a":[{"c":[1,{"a":[0,1,2]},3]}], "b":[1,2,3]}', 'one', "$**.a[3]") as ex;

select json_extract( '[1]', '$[0][0]' );
select json_extract( '[1]', '$[1][0]' );
select json_extract( '[1]', '$**[0]' );
select json_extract( '[1]', '$**[0][0]' );

select json_insert('1', '$[0]', 4);
select json_replace('1', '$[0]', 4);
select json_set('1', '$[0]', 4);
select json_set('1', '$[1]', 4);
select json_replace('1', '$[1]', 4);
SELECT json_insert('[]', '$[0][0]', 100);
SELECT json_insert('1', '$[0][0]', 100);
SELECT json_replace('1', '$[0][0]', 100);
SELECT json_replace('[]', '$[0][0]', 100);
SELECT json_set('[]', '$[0][0]', 100);
SELECT json_set('[]', '$[0][0][0]', 100);

#
# MDEV-11857 json_search() shows "Out of memory" with empty key.
#
SELECT JSON_search( '{"": "a"}', "one", 'a');

#
# MDEV-11858 json_merge() concatenates instead of merging.
#

select json_merge('{"a":"b"}', '{"a":"c"}') as ex ;
select json_merge('{"a":{"x":"b"}}', '{"a":"c"}') as ex ;
select json_merge('{"a":{"u":12, "x":"b"}}', '{"a":{"x":"c"}}') as ex ;
select json_merge('{"a":{"u":12, "x":"b", "r":1}}', '{"a":{"x":"c", "r":2}}') as ex ;

select json_compact('{"a":1, "b":[1,2,3], "c":{"aa":"v1", "bb": "v2"}}') as ex;
#enable after MDEV-32454 fix
--disable_view_protocol
select json_loose('{"a":1, "b":[1,2,3], "c":{"aa":"v1", "bb": "v2"}}') as ex;
select json_detailed('{"a":1, "b":[1,2,3], "c":{"aa":"v1", "bb": "v2"}}') as ex;
--enable_view_protocol

#
# MDEV-11856 json_search doesn't search for values with double quotes character (")
#

SELECT JSON_search( '{"x": "\\""}', "one", '"') as ex;
SELECT JSON_search( '{"x": "\\""}', "one", '\\"') as ex;

#
# MDEV-11833 JSON functions don't seem to respect max_allowed_packet.
#
set @save_max_allowed_packet=@@max_allowed_packet;
set @save_net_buffer_length=@@net_buffer_length;

set @@global.net_buffer_length=1024;
set @@global.max_allowed_packet=2048;
--connect (newconn, localhost, root,,)

show variables like 'net_buffer_length';
show variables like 'max_allowed_packet';
select json_array(repeat('a',1024),repeat('a',1024)) as ex;
select json_object("a", repeat('a',1024),"b", repeat('a',1024)) as ex;
--connection default

set @@global.max_allowed_packet = @save_max_allowed_packet;
set @@global.net_buffer_length = @save_net_buffer_length;
--disconnect newconn


#
# MDEV-12262 Assertion `!null_value' failed in virtual bool Item::send on JSON_REMOVE.
#
create table t1(j longtext, p longtext);
insert into t1 values
    ('{"a":1,"b":2,"c":3}','$.a'),
    ('{"a":1,"b":2,"c":3}','$.b'),
      ('{"a":1,"b":2,"c":3}','$.c');
select j, p, json_remove(j, p) from t1;
drop table t1;

#
# MDEV-12364 Server crashes in __memcpy_sse2_unaligned / String::copy on JSON_SEARCH with variables.
#
SET @str = 'bar', @path = '$';
SELECT JSON_SEARCH('{"foo":"bar"}', 'all' , @str, '%', @path);

#
# MDEV-12351 Assertion `cur_step->type & JSON_PATH_KEY' failed in json_find_path.
#

SELECT JSON_VALUE('[{"foo": 1},"bar"]', '$[*][0]');

#
# MDEV-12363 Assertion `0' failed in Type_handler_string_result::make_sort_key(uchar*, Item*, const SORT_FIELD_ATTR*, Sort_param*)      
#

CREATE TABLE t1 (f INT NOT NULL);
INSERT INTO t1 VALUES (0);
SELECT JSON_KEYS(f) FROM t1 ORDER BY 1;
DROP TABLE t1;

#
# MDEV-12324 Wrong result (phantom array value) on JSON_EXTRACT.
#
SELECT JSON_EXTRACT( '{"foo":"bar"}', '$[*].*' );
SELECT JSON_EXTRACT( '{"foo":"bar"}', '$[*]' );

#
# MDEV-12604 Comparison of JSON_EXTRACT result differs with Mysql.
#

select JSON_EXTRACT('{"name":"value"}', '$.name') = 'value' as ex;
select JSON_EXTRACT('{\"asdf\":true}', "$.\"asdf\"") = true as ex;
select JSON_EXTRACT('{\"asdf\":true}', "$.\"asdf\"") = false as ex;
select JSON_EXTRACT('{\"asdf\":true}', "$.\"asdf\"") = 1 as ex;
select JSON_EXTRACT('{\"input1\":\"\\u00f6\"}', '$.\"input1\"') as ex;

#
# MDEV-129892 JSON_EXTRACT returns data for invalid JSON
#
select JSON_EXTRACT('{"foo": "bar" foobar foo invalid ', '$.foo') as ex;

#
# MDEV-13138 JSON_OBJECT returns null with strings containing backticks.
#
SELECT JSON_OBJECT('foo', '`') as ex;
SELECT JSON_OBJECT("foo", "bar`bar") as ex;

#
# MDEV-13324 JSON_SET returns NULL instead of object.
#
SELECT JSON_SET('{}', '$.age', 87);

#
# MDEV-13104 Json functions.
#
SELECT JSON_MERGE('[]', '{"c":"d"}');

#
# MDEV-12774 JSON_EXTRACT fails with some escaped unicode as key.
#

SET @str = "{\"\\u00e4\\u00f6\":\"yes\"}";
SET @path = "$.\"\\u00e4\\u00f6\"";
select @str, @path, JSON_EXTRACT(@str, @path);
SET @str = "{\"\\u00e4\":\"yes\"}";
SET @path = "$.\"\\u00e4\"";
select @str, @path, JSON_EXTRACT(@str, @path);

#
# MDEV-12877 Wrong result from JSON native function.
#
select json_array(5,json_query('[1,2]','$'));

#
# MDEV-13633 JSON_ARRAY() - bad output with some UTF8 characters.
#

SELECT JSON_ARRAY('1. ě 2. š 3. č 4. ř 5. ž 6. ý 7. á 8. í 9. é 10. ů 11. ú') AS json_data;
SELECT JSON_OBJECT("user","Jožko Mrkvičká") as json_data;

#
# MDEV-12312 JSON_CONTAINS_PATH does not detect invalid path and returns TRUE.
#

select json_contains_path('{"foo":"bar"}', 'one', '$[]');

#
# MDEV-13971 crash in skip_num_constant.
#
select JSON_VALID(0x36f0c8dccd83c5eac156da);

#
# MDEV-13970 crash in Item_func_json_extract::read_json.
#
create table t1(a double not null);
insert into t1 values (2),(1);
select 1 from t1 where json_extract(a,'$','$[81]');
drop table t1;

#
# MDEV-15561 json_extract returns NULL with numbers in scientific notation.
#

select json_extract('{"test":8.437e-5}','$.test');

#
# MDEV-15905 select json_value('{"b":true}','$.b')=1 --> false with
#    "Truncated incorrect DOUBLE value: 'true'"
#
select json_value('{"b":true}','$.b')=1;

#
# MDEV-16209 JSON_EXTRACT in query crashes server.
#

CREATE TABLE t1 (c VARCHAR(8));
INSERT INTO t1 VALUES ('foo'),('bar');
SELECT * FROM t1 WHERE c IN (JSON_EXTRACT('{"a":"b"}', '$.*'));
DROP TABLE t1;

--echo #
--echo # MDEV-16814 CREATE TABLE SELECT JSON_QUOTE(multibyte_charset_expr) makes a field of a wrong length
--echo #

CREATE TABLE t1 AS SELECT
  JSON_QUOTE(_latin1'foo') AS c1,
  JSON_QUOTE(_utf8'foo') AS c2;
SHOW CREATE TABLE t1;
DROP TABLE t1;

--echo #
--echo # MDEV-16054 simple json functions flatline cpu on garbage input.
--echo #

select json_array(1,user(),compress(5.140264e+307));

--echo #
--echo # MDEV-16869 String functions don't respect character set of JSON_VALUE.
--echo #

create table t1(json_col TEXT) DEFAULT CHARSET=latin1;
insert into t1 values (_latin1 X'7B226B657931223A2253EC227D');
select JSON_VALUE(json_col, '$.key1')= _latin1 X'53EC' from t1;
select REPLACE(JSON_VALUE(json_col, '$.key1'), 'null', '') = _latin1 X'53EC' as exp from t1;
drop table t1;

--echo #
--echo # MDEV-16750 JSON_SET mishandles unicode every second pair of arguments.
--echo #

#enable after MDEV-32454 fix
--disable_view_protocol
SELECT JSON_SET('{}', '$.a', _utf8 0xC3B6) as exp;
SELECT JSON_SET('{}', '$.a', _utf8 0xC3B6, '$.b', _utf8 0xC3B6) as exp;
SELECT JSON_SET('{}', '$.a', _utf8 X'C3B6', '$.x', 1, '$.b', _utf8 X'C3B6') as exp;
--enable_view_protocol

--echo #
--echo # MDEV-17121 JSON_ARRAY_APPEND
--echo #

select json_array_append('[             ]', '$', 'aue');

--echo #
--echo # MDEV-17018 JSON_SEARCH and User-Defined Variables.
--echo #

SET @`json` := '["A", [{"B": "1"}], {"C": "AB"}, {"D": "BC"}]', @`value` := 'AB';
SELECT JSON_SEARCH(@`json`, 'one', @`value`);
SET @`json` := NULL, @`value` := NULL;

--echo #
--echo # MDEV-17001 JSON_MERGE returns nullwhen merging empty array.
--echo #

SELECT JSON_MERGE('[1]', '[]');

--echo #
--echo # MDEV-16174 Assertion `0' failed in Type_handler_string_result::
--echo #       make_sort_key(uchar*, Item*, const SORT_FIELD_ATTR*, Sort_param*)
--echo #

SET sql_mode='';
CREATE TABLE t1 (fld varchar(16) NOT NULL);
CREATE TABLE t2 SELECT JSON_ARRAY_INSERT(fld, '$.[0]', '0') FROM t1;
SHOW CREATE TABLE t2;
DROP TABLE t1, t2;
SET sql_mode=default;

--echo #
--echo # MDEV-17454 JSON_VALID( '{"a":1]' ) evaluates to 1
--echo #

select JSON_VALID( '{"a":1]' );

--echo #
--echo # MDEV-18886 JSON_ARRAY() does not recognise JSON argument.
--echo #
SELECT JSON_ARRAY(_UTF8 'str', JSON_OBJECT(_LATIN1 'plugin', _LATIN1'unix_socket')) as exp;
SELECT CHARSET(JSON_ARRAY()) as exp;
SELECT CHARSET(JSON_OBJECT()) as exp;

--echo #
--echo # MDEV-13992 Implement JSON_MERGE_PATCH
--echo #

CREATE TABLE merge_t(
id INT PRIMARY KEY AUTO_INCREMENT,
target VARCHAR(100), patch VARCHAR(100)
);
INSERT INTO merge_t(target, patch) VALUES
('{"a":"b"}', '{"a":"c"}'),
('{"a":"b"}', '{"b":"c"}'),
('{"a":"b"}', '{"a":null}'),
('{"a":"b", "b":"c"}', '{"a":null}'),
('{"a":["b"]}', '{"a":"c"}'),
('{"a":"c"}', '{"a":["b"]}'),
('{"a": {"b":"c"}}', '{"a": {"b":"d", "c":null}}'),
('{"a":[{"b":"c"}]}', '{"a": [1]}'),
('["a","b"]', '["c","d"]'),
('{"a":"b"}', '["c"]'),
('{"a":"foo"}', 'null'),
('{"a":"foo"}', '"bar"'),
('{"e":null}', '{"a":1}'),
('[1,2]', '{"a":"b", "c":null}'),
('{}', '{"a":{"bb":{"ccc":null}}}'),
(NULL, '{}'),
('{}', NULL);
SELECT id, target, patch,
       JSON_MERGE_PATCH(target, patch) AS merged,
       JSON_EXTRACT(JSON_MERGE_PATCH(target, patch), '$.a') AS a
FROM merge_t ORDER BY id;
DROP TABLE merge_t;

SELECT JSON_MERGE_PATCH('{"a":"b"}', NULL, '{"c":"d"}') as exp;
SELECT JSON_MERGE_PATCH(NULL, '[1,2,3]') as exp;
SELECT JSON_MERGE_PATCH(NULL, 'a') as exp;
SELECT JSON_MERGE_PATCH('{"a":"b"}', NULL, '[1,2,3]', '{"c":null,"d":"e"}') as exp;

--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT JSON_MERGE_PATCH() as exp;
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT JSON_MERGE_PATCH('{}') as exp;
SELECT JSON_MERGE_PATCH('{', '[1,2,3]') as exp;
SELECT JSON_MERGE_PATCH('{"a":"b"}', '[1,') as exp;

--echo #
--echo # MDEV-22976 CAST(JSON_EXTRACT() AS DECIMAL) does not handle boolean values
--echo #

SELECT
  CAST(JSON_EXTRACT('{"x":true}', '$.x') AS DOUBLE) AS cf,
  CAST(JSON_EXTRACT('{"x":true}', '$.x') AS DECIMAL) AS cd;

SELECT
  CAST(JSON_EXTRACT('{"x":false}', '$.x') AS DOUBLE) AS cf,
  CAST(JSON_EXTRACT('{"x":false}', '$.x') AS DECIMAL) AS cd;


--echo #
--echo # MDEV-24585 Assertion `je->s.cs == nice_js->charset()' failed in json_nice.
--echo #

SELECT JSON_REPLACE( JSON_DETAILED('["x"]'), '$.a', 'xx' );

--echo #
--echo # MDEV-18284 JSON casting using JSON_COMPACT doesn't always work
--echo #            with values from subqueries
--echo #

CREATE TABLE json_test(a JSON, b JSON);
INSERT INTO json_test VALUES ("[1,2,3]", '{"a":"foo"}');
SELECT * FROM json_test;

SELECT json_object("a", json_compact(a), "b", b)
  FROM (SELECT * FROM json_test) AS json_test_values;
SELECT json_object("a", json_compact(a), "b", json_compact(b))
  FROM (SELECT * FROM json_test) AS json_test_values;
DROP TABLE json_test;

--echo #
--echo # End of 10.2 tests
--echo #

--echo #
--echo # MDEV-12854 Synchronize CREATE..SELECT data type and result set metadata data type for INT functions
--echo #

--enable_metadata
--disable_ps_protocol
--disable_view_protocol

SELECT
  JSON_VALID('{"id": 1, "name": "Monty"}') AS json_valid,
  JSON_EXISTS('{"key1":"xxxx", "key2":[1, 2, 3]}', "$.key2") AS json_exists,
  JSON_CONTAINS('{"A": 0, "B": {"C": 1}, "D": 2}', '2', '$.A') AS ison_contains,
  JSON_CONTAINS_PATH('{"A": 1, "B": [2], "C": [3, 4]}', 'one', '$.A', '$.D') AS json_contains_path;

SELECT
  JSON_LENGTH('{"a": 1, "b": {"c": 30}}') AS json_length,
  JSON_DEPTH('[10, {"a": 20}]') AS json_depnth;

--enable_view_protocol
--enable_ps_protocol
--disable_metadata

--echo #
--echo # MDEV-19670 json escaped unicode parse error
--echo #

SELECT json_valid('{"value":"\\ud83d\\ude0a"}');
SELECT json_valid('{"test": "\\ud83d\\ude0b"}');

--echo #
--echo # MDEV-19670 json escaped unicode parse error
--echo #

SELECT JSON_VALID('{"admin\\"": null}'), '{"admin\\"": null}'
    UNION
    SELECT JSON_VALID('{"\\"admin": null}'), '{"\\"admin": null}'
      UNION
      SELECT JSON_VALID('{"\\"": null}'), '{"\\"": null}';

--echo #
--echo # MDEV-29188: Crash in JSON_EXTRACT
--echo #

CREATE TABLE t1 (j JSON);

INSERT INTO t1 VALUES
  ('{"ID": "4", "Name": "Betty", "Age": 19}'),
  ('[10, 20, [30, 40]]');

SELECT * FROM t1 WHERE JSON_EXTRACT(j, '$.Age')=19;

drop table t1;

--echo #
--echo # MDEV-27151: JSON_VALUE() does not parse NULL properties properly
--echo #
--echo #
--echo # It is correct for JSON_EXTRACT() to give null instead of "NULL" because
--echo # it returns the json literal that is put inside json.
--echo # Hence it should return null as in 'null' string and not SQL NULL.
--echo # JSON_VALUE() returns the "VALUE" so it is correct for it to return SQl NULL
--echo #

SELECT NULL;
SELECT JSON_VALUE('{"nulltest": null}', '$.nulltest');
SELECT 1 + NULL;
SELECT 1 + JSON_VALUE('{"nulltest": null}', '$.nulltest');


SELECT NULL;
SELECT JSON_EXTRACT('{"a":null, "b":10, "c":"null"}', '$.a');

--echo #
--echo # Start of 10.4 tests
--echo #

--echo #
--echo # MDEV-16351 JSON_OBJECT() treats hybrid functions with boolean arguments as numbers
--echo #

--vertical_results
#enable after fix MDEV-28649
--disable_view_protocol
SELECT
  JSON_OBJECT("cond", true) AS j1,
  JSON_OBJECT("cond", COALESCE(true, false)) j2,
  JSON_OBJECT("cond", COALESCE(COALESCE(true, false))) j3;
--enable_view_protocol
--horizontal_results

CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(2),(3);
SELECT JSON_OBJECT('x',(SELECT MAX(a)=4 FROM t1));
SELECT JSON_OBJECT('x',(SELECT MAX(a)=3 FROM t1));
SELECT JSON_OBJECT('x',(SELECT MAX(a)=2 FROM t1));

SELECT JSON_OBJECT('x',MAX(a=4)) FROM t1;
SELECT JSON_OBJECT('x',MAX(a=3)) FROM t1;
SELECT JSON_OBJECT('x',MAX(a=2)) FROM t1;

SELECT JSON_OBJECT('x',(SELECT MAX(a=4) FROM t1));
SELECT JSON_OBJECT('x',(SELECT MAX(a=3) FROM t1));
SELECT JSON_OBJECT('x',(SELECT MAX(a=2) FROM t1));

SELECT * FROM t1 WHERE CASE WHEN JSON_OBJECT('x', (SELECT MAX(a)=4 FROM t1))='{"x": true}' THEN a END;
SELECT * FROM t1 WHERE CASE WHEN JSON_OBJECT('x', (SELECT MAX(a)=4 FROM t1))='{"x": false}' THEN a END;
SELECT * FROM t1 WHERE CASE WHEN JSON_OBJECT('x', (SELECT MAX(a)=3 FROM t1))='{"x": true}' THEN a END;
SELECT * FROM t1 WHERE CASE WHEN JSON_OBJECT('x', (SELECT MAX(a)=3 FROM t1))='{"x": false}' THEN a END;
SELECT * FROM t1 WHERE CASE WHEN JSON_OBJECT('x', (SELECT MAX(a)=2 FROM t1))='{"x": true}' THEN a END;
SELECT * FROM t1 WHERE CASE WHEN JSON_OBJECT('x', (SELECT MAX(a)=2 FROM t1))='{"x": false}' THEN a END;

SELECT * FROM t1 WHERE CASE WHEN JSON_OBJECT('x', (SELECT MAX(a=4) FROM t1))='{"x": true}' THEN a END;
SELECT * FROM t1 WHERE CASE WHEN JSON_OBJECT('x', (SELECT MAX(a=4) FROM t1))='{"x": false}' THEN a END;
SELECT * FROM t1 WHERE CASE WHEN JSON_OBJECT('x', (SELECT MAX(a=3) FROM t1))='{"x": true}' THEN a END;
SELECT * FROM t1 WHERE CASE WHEN JSON_OBJECT('x', (SELECT MAX(a=3) FROM t1))='{"x": false}' THEN a END;
SELECT * FROM t1 WHERE CASE WHEN JSON_OBJECT('x', (SELECT MAX(a=2) FROM t1))='{"x": true}' THEN a END;
SELECT * FROM t1 WHERE CASE WHEN JSON_OBJECT('x', (SELECT MAX(a=2) FROM t1))='{"x": false}' THEN a END;


DROP TABLE t1;

-- echo #
-- echo # MDEV-16620 JSON_ARRAYAGG
-- echo #

-- echo #
-- echo # Integer aggregation
-- echo #
CREATE TABLE t1 (a INT, b INT);
INSERT INTO t1 VALUES (1, 1),(2, 1), (1, 1),(2, 1), (3, 2),(2, 2),(2, 2),(2, 2);
SELECT JSON_VALID(JSON_ARRAYAGG(a)) FROM t1;
SELECT JSON_ARRAYAGG(a), JSON_ARRAYAGG(b) FROM t1;
SELECT JSON_ARRAYAGG(a), JSON_ARRAYAGG(b) FROM t1 GROUP BY b;
DROP TABLE t1;

-- echo #
-- echo # Real aggregation
-- echo #
CREATE TABLE t1 (a FLOAT, b DOUBLE, c DECIMAL(10, 2));
INSERT INTO t1 VALUES (1.0, 2.0, 3.0),(1.0, 3.0, 9.0),(1.0, 4.0, 16.0),(1.0, 5.0, 25.0);
SELECT JSON_VALID(JSON_ARRAYAGG(a)) FROM t1;
SELECT JSON_ARRAYAGG(a), JSON_ARRAYAGG(b), JSON_ARRAYAGG(c) FROM t1;
DROP TABLE t1;

-- echo #
-- echo # Boolean aggregation
-- echo #
CREATE TABLE t1 (a BOOLEAN, b BOOLEAN);
INSERT INTO t1 VALUES (TRUE, TRUE), (TRUE, FALSE), (FALSE, TRUE), (FALSE, FALSE);
SELECT JSON_VALID(JSON_ARRAYAGG(a)) FROM t1;
SELECT JSON_ARRAYAGG(a), JSON_ARRAYAGG(b) FROM t1;
SELECT JSON_ARRAYAGG(a), JSON_ARRAYAGG(b) FROM t1 GROUP BY b;
#enable after MDEV-32454 fix
--disable_view_protocol
SELECT JSON_ARRAYAGG(TRUE), JSON_ARRAYAGG(FALSE) FROM t1;
--enable_view_protocol
DROP TABLE t1;

-- echo #
-- echo # Aggregation of strings with quoted
-- echo #
CREATE TABLE t1 (a VARCHAR(80));
INSERT INTO t1 VALUES
       ('"double_quoted_value"'), ("'single_quoted_value'"),
       ('"double_quoted_value"'), ("'single_quoted_value'");
SELECT JSON_VALID(JSON_ARRAYAGG(a)) FROM t1;
SELECT JSON_ARRAYAGG(a) FROM t1;
DROP TABLE t1;

-- echo #
-- echo # Strings and NULLs
-- echo #
CREATE TABLE t1 (a INT, b VARCHAR(80));
INSERT INTO t1 VALUES
       (1, "Hello"),(1, "World"), (2, "This"),(2, "Will"), (2, "Work"),(2, "!"), (3, NULL),
       (1, "Hello"),(1, "World"), (2, "This"),(2, "Will"), (2, "Work"),(2, "!"), (3, NULL);
SELECT JSON_VALID(JSON_ARRAYAGG(b)) FROM t1;
SELECT JSON_ARRAYAGG(a), JSON_ARRAYAGG(b) FROM t1;
SELECT JSON_ARRAYAGG(a), JSON_ARRAYAGG(b) FROM t1 GROUP BY a;

-- echo #
-- echo # DISTINCT and LIMIT
-- echo #
SELECT JSON_ARRAYAGG(b LIMIT 1) FROM t1;
SELECT JSON_ARRAYAGG(b LIMIT 2) FROM t1;
SELECT JSON_ARRAYAGG(b LIMIT 1) FROM t1 GROUP BY b;
SELECT JSON_ARRAYAGG(b LIMIT 2) FROM t1 GROUP BY a;
SELECT JSON_ARRAYAGG(DISTINCT a) FROM t1;
SELECT JSON_ARRAYAGG(DISTINCT b) FROM t1;
SELECT JSON_ARRAYAGG(DISTINCT a LIMIT 2) FROM t1;
SELECT JSON_ARRAYAGG(DISTINCT b LIMIT 2) FROM t1;

-- echo #
-- echo # JSON aggregation
-- echo #
SELECT JSON_VALID(JSON_ARRAYAGG(JSON_ARRAY(a, b))) FROM t1;
SELECT JSON_ARRAYAGG(JSON_ARRAY(a, b)) FROM t1;
SELECT JSON_ARRAYAGG(JSON_ARRAY(a, b)) FROM t1 GROUP BY a;

SELECT JSON_VALID(JSON_ARRAYAGG(JSON_OBJECT('a', a, 'b', b))) FROM t1;
SELECT JSON_ARRAYAGG(JSON_OBJECT('a', a, 'b', b)) FROM t1;
SELECT JSON_ARRAYAGG(JSON_OBJECT('a', a, 'b', b)) FROM t1 GROUP BY a;

-- echo #
-- echo # Error checks
-- echo #
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT JSON_ARRAYAGG(a, b) FROM t1;

--error  ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT JSON_ARRAYAGG(JSON_ARRAYAGG(a, b)) FROM t1;

--error ER_INVALID_GROUP_FUNC_USE
SELECT JSON_ARRAYAGG(JSON_ARRAYAGG(a)) FROM t1;

-- echo #
-- echo # MDEV-16620 JSON_OBJECTAGG
-- echo #

SELECT JSON_OBJECTAGG(a, b) FROM t1;
--error ER_PARSE_ERROR
SELECT JSON_OBJECTAGG(a) FROM t1;

DROP TABLE t1;

--echo #
--echo # MDEV-19160 JSON_DETAILED output unnecessarily verbose
--echo #

create table t200 (a text);

insert into t200 values
('{
  "steps": [
    {
      "join_optimization": {
        "select_id": 1,
        "steps": [
          {
            "rows_estimation": [
              {
                "table": "t1",
                "range_analysis": {
                  "table_scan": {
                    "rows": 1000,
                    "cost": 2e308
                  },
                  "potential_range_indexes": [
                    {
                      "index": "a_b",
                      "usable": true,
                      "key_parts": ["a", "b"]
                    }
                  ],
                  "best_covering_index_scan": {
                    "index": "a_b",
                    "cost": 52.195,
                    "chosen": true
                  },
                  "setup_range_conditions": [],
                  "group_index_range": {
                    "chosen": false,
                    "cause": "no group by or distinct"
                  },
                  "analyzing_range_alternatives": {
                    "range_scan_alternatives": [
                      {
                        "index": "a_b",
                        "ranges": ["2 <= a <= 2 AND 4 <= b <= 4", "123"],
                        "rowid_ordered": true,
                        "using_mrr": false,
                        "index_only": true,
                        "rows": 1,
                        "cost": 1.1752,
                        "chosen": true
                      }
                    ],
                    "analyzing_roworder_intersect": {
                      "cause": "too few roworder scans"
                    },
                    "analyzing_index_merge_union": [],
                    "test_one_line_array":["123"]
                  },
                  "chosen_range_access_summary": {
                    "range_access_plan": {
                      "type": "range_scan",
                      "index": "a_b",
                      "rows": 1,
                      "ranges": ["2 <= a <= 2 AND 4 <= b <= 4"]
                    },
                    "rows_for_plan": 1,
                    "cost_for_plan": 1.1752,
                    "chosen": true
                  }
                }
              },
              {
                "selectivity_for_indexes": [
                  {
                    "index_name": "a_b",
                    "selectivity_from_index": 0.001
                  }
                ],
                "selectivity_for_columns": [],
                "cond_selectivity": 0.001
              }
            ]
          }
        ]
      }
    },
    {
      "join_execution": {
        "select_id": 1,
        "steps": []
      }
    }
  ]
}');


select JSON_DETAILED(JSON_EXTRACT(a, '$**.analyzing_range_alternatives')) as exp from t200;
select JSON_PRETTY(JSON_EXTRACT(a, '$**.analyzing_range_alternatives')) as exp from t200;
select JSON_LOOSE(JSON_EXTRACT(a, '$**.analyzing_range_alternatives')) as exp from t200;
drop table t200;

--echo #
--echo # MDEV-24538: JSON_LENGTH does not return error upon wrong number of parameters
--echo #
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT JSON_LENGTH('{"a":"b"}','$','$', 'foo');
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT JSON_LENGTH();

--echo # MDEV-23187: Assorted assertion failures in json_find_path with certain collations


SET @old_collation_connection= @@COLLATION_CONNECTION;

SET COLLATION_CONNECTION= ucs2_unicode_ci;
SELECT JSON_VALUE('["foo"]', '$**[0]') AS f;

SET @@COLLATION_CONNECTION= @old_collation_connection;

--echo #
--echo # End of 10.4 tests
--echo #

-- echo #
-- echo # MDEV-16620 JSON_ARRAYAGG
-- echo #

CREATE TABLE t1 (a INT);
SELECT JSON_ARRAYAGG(a) FROM t1;
DROP TABLE t1;

-- echo #
-- echo # MDEV-21915 Server crashes in copy_fields,Item_func_group_concat::add
-- echo       while using json_arrayagg() as a window function
-- echo #

--error ER_NOT_SUPPORTED_YET
select json_arrayagg(a) over () from (select 1 a) t;

--error ER_NOT_SUPPORTED_YET
select json_objectagg(a, b) over () from (select 1 a, 2 b) t;

SELECT JSON_ARRAYAGG(NULL) FROM (SELECT 1 AS t) AS A;
SELECT JSON_ARRAYAGG("null") FROM (SELECT 1 AS t) AS A;

create view v as (select json_arrayagg(json_object("type", "permPeriod", "id", "asd")) as JSON_DATA);
select * from v; 
drop view v;

select json_arrayagg(a order by a asc) from (select 1 a union select 2 a) t;

select json_object('x', json_arrayagg(json_object('a', 1)));

--echo #
--echo # MDEV-22011: DISTINCT with JSON_ARRAYAGG gives wrong results
--echo #

CREATE TABLE t1(a INT, b INT);
INSERT INTO t1 VALUES (1,1), (2,2), (3,3);
INSERT INTO t1 VALUES (1,1), (2,2), (3,3);

SELECT JSON_ARRAYAGG(a) FROM t1;
SELECT JSON_ARRAYAGG(DISTINCT a) FROM t1;

INSERT INTO t1 VALUES (NULL,NULL), (NULL,NULL);

SELECT JSON_ARRAYAGG(a) FROM t1;
SELECT JSON_ARRAYAGG(DISTINCT a) FROM t1;
DROP TABLE t1;

CREATE TABLE t1(a VARCHAR(10), b INT);
INSERT INTO t1 VALUES (1,1), (2,2), (3,3);
INSERT INTO t1 VALUES (1,1), (2,2), (3,3);

SELECT JSON_ARRAYAGG(a) FROM t1;
SELECT JSON_ARRAYAGG(DISTINCT a) FROM t1;

INSERT INTO t1 VALUES (NULL,NULL), (NULL,NULL);

SELECT JSON_ARRAYAGG(a) FROM t1;
SELECT JSON_ARRAYAGG(DISTINCT a) FROM t1;

DROP TABLE t1;

--echo #
--echo # MDEV-22840: JSON_ARRAYAGG gives wrong results with NULL values and ORDER by clause
--echo #

CREATE TABLE t1(a VARCHAR(255));
INSERT INTO t1 VALUES ('red'),('blue');

SELECT JSON_ARRAYAGG(a) FROM t1;
SELECT JSON_ARRAYAGG(a ORDER BY a DESC) FROM t1;
SELECT JSON_ARRAYAGG(a ORDER BY a ASC) FROM t1;

INSERT INTO t1 VALUES (NULL);

SELECT JSON_ARRAYAGG(a) FROM t1;
SELECT JSON_ARRAYAGG(a ORDER BY a DESC) FROM t1;
SELECT JSON_ARRAYAGG(a ORDER BY a ASC) FROM t1;
DROP TABLE t1;

set group_concat_max_len=64;
create table t1 (a varchar(254));
insert into t1 values (concat('x64-', repeat('a', 60)));
insert into t1 values (concat('x64-', repeat('b', 60)));
insert into t1 values (concat('x64-', repeat('c', 60)));
#enable after MDEV-32454 fix
--disable_view_protocol
--disable_ps2_protocol
select json_arrayagg(a) from t1;
--enable_ps2_protocol
--enable_view_protocol
drop table t1;
SET group_concat_max_len= default;

create table t1 (col1 json);
insert into t1 values('{"color":"red", "size":1}' );
insert into t1 values('{"color":"blue", "size":2}' );
select JSON_ARRAYAGG(col1) from t1;
drop table t1;

--echo #
--echo # MDEV-23029: JSON_OBJECTAGG returns NULL when used together with GROUP BY
--echo #

CREATE TABLE t1 (e INT, a VARCHAR(255), v VARCHAR(255));
INSERT INTO t1 VALUES (0, 'a1', '1') , (0, 'a2', '2') , (1, 'b1', '3');

EXPLAIN SELECT B.e, JSON_OBJECTAGG(B.a, B.v) FROM t1 A, t1 B GROUP BY B.e, B.a;
SELECT B.e, JSON_OBJECTAGG(B.a, B.v) FROM t1 A, t1 B GROUP BY B.e, B.a;

CREATE VIEW v AS SELECT JSON_OBJECTAGG(a, e) FROM t1;
SELECT * FROM v;

DROP VIEW v;
DROP TABLE t1;

--echo #
--echo # MDEV-23004 When using GROUP BY with JSON_ARRAYAGG with joint table, the square brackets are not included.
--echo #

CREATE TABLE t1(id int primary key, name varchar(50));
CREATE TABLE t2(id int, owner_id int);
 
INSERT INTO t1 VALUES (1, "name1"), (2, "name2"), (3, "name3");
INSERT INTO t2 VALUES (1, 1), (2, 1), (3, 2), (4, 3);
 
SELECT t1.id, JSON_ARRAYAGG(JSON_OBJECT('id',t2.id) ORDER BY t2.id) as materials
  from t1 LEFT JOIN t2 on t1.id = t2.owner_id
  GROUP BY t1.id ORDER BY id;

DROP TABLE t1;
DROP TABLE t2;

--echo #
--echo # MDEV-27018 IF and COALESCE lose "json" property
--echo #

SELECT json_object('a', if(1, json_object('b', 'c'), json_object('e', 'f'))) as exp;
SELECT json_object('a', coalesce(json_object('b', 'c'))) as exp;

--echo #
--echo # MDEV-26392: Crash with json_get_path_next and 10.5.12
--echo #

CREATE TABLE arrNestTest (
    id VARCHAR(80) AS (JSON_COMPACT(JSON_EXTRACT(doc, "$._id"))) UNIQUE KEY,
    doc JSON, 
    CONSTRAINT id_not_null CHECK(id IS NOT NULL));
    
INSERT INTO test.arrNestTest (doc) VALUES ('{ "_id" : { "$oid" : "611c0a463b150154132f6636" }, "a" : [ { "a" : [ { "a" : [ { "a" : [ { "a" : [ { "a" : [ { "a" : [ { "a" : [ { "a" : [ { "a" : [ { "a" : [ { "a" : [ { "a" : [ { "a" : [ { "a" : [ { "a" : 1.0 } ] } ] } ] } ] } ] } ] } ] } ] } ] } ] } ] } ] } ] } ] } ] }');
SELECT * FROM arrNestTest;
DROP TABLE arrNestTest;

--echo #
--echo # MDEV-30412 JSON_OBJECTAGG doesn't escape double quote in key
--echo #

SELECT JSON_OBJECTAGG('"', 1);
SELECT JSON_OBJECTAGG('\"', 1);
SELECT JSON_OBJECTAGG('\\', 1);

--echo #
--echo # End of 10.5 tests
--echo #