Tom Lane cdc8d371e2 Restore json{b}_populate_record{set}'s ability to take type info from AS.
If the record argument is NULL and has no declared type more concrete
than RECORD, we can't extract useful information about the desired
rowtype from it.  In this case, see if we're in FROM with an AS clause,
and if so extract the needed rowtype info from AS.

It worked like this before v11, but commit 37a795a60 removed the
behavior, reasoning that it was undocumented, inefficient, and utterly
not self-consistent.  If you want to take type info from an AS clause,
you should be using the json_to_record() family of functions not the
json_populate_record() family.  Also, it was already the case that
the "populate" functions would fail for a null-valued RECORD input
(with an unfriendly "record type has not been registered" error)
when there wasn't an AS clause at hand, and it wasn't obvious that
that behavior wasn't OK when there was one.  However, it emerges
that some people were depending on this to work, and indeed the
rather off-point error message you got if you left off AS encouraged
slapping on AS without switching to the json_to_record() family.

Hence, put back the fallback behavior of looking for AS.  While at it,
improve the run-time error you get when there's no place to obtain type
info; we can do a lot better than "record type has not been registered".
(We can't, unfortunately, easily improve the parse-time error message
that leads people down this path in the first place.)

While at it, I refactored the code a bit to avoid duplicating the
same logic in several different places.

Per bug #15940 from Jaroslav Sivy.  Back-patch to v11 where the
current coding came in.  (The pre-v11 deficiencies in this area
aren't regressions, so we'll leave those branches alone.)

Patch by me, based on preliminary analysis by Dmitry Dolgov.

Discussion: https://postgr.es/m/15940-2ab76dc58ffb85b6@postgresql.org
2019-08-19 18:00:57 -04:00

832 lines
34 KiB
PL/PgSQL

-- Strings.
SELECT '""'::json; -- OK.
SELECT $$''$$::json; -- ERROR, single quotes are not allowed
SELECT '"abc"'::json; -- OK
SELECT '"abc'::json; -- ERROR, quotes not closed
SELECT '"abc
def"'::json; -- ERROR, unescaped newline in string constant
SELECT '"\n\"\\"'::json; -- OK, legal escapes
SELECT '"\v"'::json; -- ERROR, not a valid JSON escape
-- see json_encoding test for input with unicode escapes
-- Numbers.
SELECT '1'::json; -- OK
SELECT '0'::json; -- OK
SELECT '01'::json; -- ERROR, not valid according to JSON spec
SELECT '0.1'::json; -- OK
SELECT '9223372036854775808'::json; -- OK, even though it's too large for int8
SELECT '1e100'::json; -- OK
SELECT '1.3e100'::json; -- OK
SELECT '1f2'::json; -- ERROR
SELECT '0.x1'::json; -- ERROR
SELECT '1.3ex100'::json; -- ERROR
-- Arrays.
SELECT '[]'::json; -- OK
SELECT '[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]'::json; -- OK
SELECT '[1,2]'::json; -- OK
SELECT '[1,2,]'::json; -- ERROR, trailing comma
SELECT '[1,2'::json; -- ERROR, no closing bracket
SELECT '[1,[2]'::json; -- ERROR, no closing bracket
-- Objects.
SELECT '{}'::json; -- OK
SELECT '{"abc"}'::json; -- ERROR, no value
SELECT '{"abc":1}'::json; -- OK
SELECT '{1:"abc"}'::json; -- ERROR, keys must be strings
SELECT '{"abc",1}'::json; -- ERROR, wrong separator
SELECT '{"abc"=1}'::json; -- ERROR, totally wrong separator
SELECT '{"abc"::1}'::json; -- ERROR, another wrong separator
SELECT '{"abc":1,"def":2,"ghi":[3,4],"hij":{"klm":5,"nop":[6]}}'::json; -- OK
SELECT '{"abc":1:2}'::json; -- ERROR, colon in wrong spot
SELECT '{"abc":1,3}'::json; -- ERROR, no value
-- Recursion.
SET max_stack_depth = '100kB';
SELECT repeat('[', 10000)::json;
SELECT repeat('{"a":', 10000)::json;
RESET max_stack_depth;
-- Miscellaneous stuff.
SELECT 'true'::json; -- OK
SELECT 'false'::json; -- OK
SELECT 'null'::json; -- OK
SELECT ' true '::json; -- OK, even with extra whitespace
SELECT 'true false'::json; -- ERROR, too many values
SELECT 'true, false'::json; -- ERROR, too many values
SELECT 'truf'::json; -- ERROR, not a keyword
SELECT 'trues'::json; -- ERROR, not a keyword
SELECT ''::json; -- ERROR, no value
SELECT ' '::json; -- ERROR, no value
--constructors
-- array_to_json
SELECT array_to_json(array(select 1 as a));
SELECT array_to_json(array_agg(q),false) from (select x as b, x * 2 as c from generate_series(1,3) x) q;
SELECT array_to_json(array_agg(q),true) from (select x as b, x * 2 as c from generate_series(1,3) x) q;
SELECT array_to_json(array_agg(q),false)
FROM ( SELECT $$a$$ || x AS b, y AS c,
ARRAY[ROW(x.*,ARRAY[1,2,3]),
ROW(y.*,ARRAY[4,5,6])] AS z
FROM generate_series(1,2) x,
generate_series(4,5) y) q;
SELECT array_to_json(array_agg(x),false) from generate_series(5,10) x;
SELECT array_to_json('{{1,5},{99,100}}'::int[]);
-- row_to_json
SELECT row_to_json(row(1,'foo'));
SELECT row_to_json(q)
FROM (SELECT $$a$$ || x AS b,
y AS c,
ARRAY[ROW(x.*,ARRAY[1,2,3]),
ROW(y.*,ARRAY[4,5,6])] AS z
FROM generate_series(1,2) x,
generate_series(4,5) y) q;
SELECT row_to_json(q,true)
FROM (SELECT $$a$$ || x AS b,
y AS c,
ARRAY[ROW(x.*,ARRAY[1,2,3]),
ROW(y.*,ARRAY[4,5,6])] AS z
FROM generate_series(1,2) x,
generate_series(4,5) y) q;
CREATE TEMP TABLE rows AS
SELECT x, 'txt' || x as y
FROM generate_series(1,3) AS x;
SELECT row_to_json(q,true)
FROM rows q;
SELECT row_to_json(row((select array_agg(x) as d from generate_series(5,10) x)),false);
-- anyarray column
select to_json(histogram_bounds) histogram_bounds
from pg_stats
where attname = 'tmplname' and tablename = 'pg_pltemplate';
-- to_json, timestamps
select to_json(timestamp '2014-05-28 12:22:35.614298');
BEGIN;
SET LOCAL TIME ZONE 10.5;
select to_json(timestamptz '2014-05-28 12:22:35.614298-04');
SET LOCAL TIME ZONE -8;
select to_json(timestamptz '2014-05-28 12:22:35.614298-04');
COMMIT;
select to_json(date '2014-05-28');
select to_json(date 'Infinity');
select to_json(date '-Infinity');
select to_json(timestamp 'Infinity');
select to_json(timestamp '-Infinity');
select to_json(timestamptz 'Infinity');
select to_json(timestamptz '-Infinity');
--json_agg
SELECT json_agg(q)
FROM ( SELECT $$a$$ || x AS b, y AS c,
ARRAY[ROW(x.*,ARRAY[1,2,3]),
ROW(y.*,ARRAY[4,5,6])] AS z
FROM generate_series(1,2) x,
generate_series(4,5) y) q;
SELECT json_agg(q ORDER BY x, y)
FROM rows q;
UPDATE rows SET x = NULL WHERE x = 1;
SELECT json_agg(q ORDER BY x NULLS FIRST, y)
FROM rows q;
-- non-numeric output
SELECT row_to_json(q)
FROM (SELECT 'NaN'::float8 AS "float8field") q;
SELECT row_to_json(q)
FROM (SELECT 'Infinity'::float8 AS "float8field") q;
SELECT row_to_json(q)
FROM (SELECT '-Infinity'::float8 AS "float8field") q;
-- json input
SELECT row_to_json(q)
FROM (SELECT '{"a":1,"b": [2,3,4,"d","e","f"],"c":{"p":1,"q":2}}'::json AS "jsonfield") q;
-- json extraction functions
CREATE TEMP TABLE test_json (
json_type text,
test_json json
);
INSERT INTO test_json VALUES
('scalar','"a scalar"'),
('array','["zero", "one","two",null,"four","five", [1,2,3],{"f1":9}]'),
('object','{"field1":"val1","field2":"val2","field3":null, "field4": 4, "field5": [1,2,3], "field6": {"f1":9}}');
SELECT test_json -> 'x'
FROM test_json
WHERE json_type = 'scalar';
SELECT test_json -> 'x'
FROM test_json
WHERE json_type = 'array';
SELECT test_json -> 'x'
FROM test_json
WHERE json_type = 'object';
SELECT test_json->'field2'
FROM test_json
WHERE json_type = 'object';
SELECT test_json->>'field2'
FROM test_json
WHERE json_type = 'object';
SELECT test_json -> 2
FROM test_json
WHERE json_type = 'scalar';
SELECT test_json -> 2
FROM test_json
WHERE json_type = 'array';
SELECT test_json -> -1
FROM test_json
WHERE json_type = 'array';
SELECT test_json -> 2
FROM test_json
WHERE json_type = 'object';
SELECT test_json->>2
FROM test_json
WHERE json_type = 'array';
SELECT test_json ->> 6 FROM test_json WHERE json_type = 'array';
SELECT test_json ->> 7 FROM test_json WHERE json_type = 'array';
SELECT test_json ->> 'field4' FROM test_json WHERE json_type = 'object';
SELECT test_json ->> 'field5' FROM test_json WHERE json_type = 'object';
SELECT test_json ->> 'field6' FROM test_json WHERE json_type = 'object';
SELECT json_object_keys(test_json)
FROM test_json
WHERE json_type = 'scalar';
SELECT json_object_keys(test_json)
FROM test_json
WHERE json_type = 'array';
SELECT json_object_keys(test_json)
FROM test_json
WHERE json_type = 'object';
-- test extending object_keys resultset - initial resultset size is 256
select count(*) from
(select json_object_keys(json_object(array_agg(g)))
from (select unnest(array['f'||n,n::text])as g
from generate_series(1,300) as n) x ) y;
-- nulls
select (test_json->'field3') is null as expect_false
from test_json
where json_type = 'object';
select (test_json->>'field3') is null as expect_true
from test_json
where json_type = 'object';
select (test_json->3) is null as expect_false
from test_json
where json_type = 'array';
select (test_json->>3) is null as expect_true
from test_json
where json_type = 'array';
-- corner cases
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> null::text;
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> null::int;
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> 1;
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> -1;
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> 'z';
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> '';
select '[{"b": "c"}, {"b": "cc"}]'::json -> 1;
select '[{"b": "c"}, {"b": "cc"}]'::json -> 3;
select '[{"b": "c"}, {"b": "cc"}]'::json -> 'z';
select '{"a": "c", "b": null}'::json -> 'b';
select '"foo"'::json -> 1;
select '"foo"'::json -> 'z';
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json ->> null::text;
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json ->> null::int;
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json ->> 1;
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json ->> 'z';
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json ->> '';
select '[{"b": "c"}, {"b": "cc"}]'::json ->> 1;
select '[{"b": "c"}, {"b": "cc"}]'::json ->> 3;
select '[{"b": "c"}, {"b": "cc"}]'::json ->> 'z';
select '{"a": "c", "b": null}'::json ->> 'b';
select '"foo"'::json ->> 1;
select '"foo"'::json ->> 'z';
-- array length
SELECT json_array_length('[1,2,3,{"f1":1,"f2":[5,6]},4]');
SELECT json_array_length('[]');
SELECT json_array_length('{"f1":1,"f2":[5,6]}');
SELECT json_array_length('4');
-- each
select json_each('{"f1":[1,2,3],"f2":{"f3":1},"f4":null}');
select * from json_each('{"f1":[1,2,3],"f2":{"f3":1},"f4":null,"f5":99,"f6":"stringy"}') q;
select json_each_text('{"f1":[1,2,3],"f2":{"f3":1},"f4":null,"f5":"null"}');
select * from json_each_text('{"f1":[1,2,3],"f2":{"f3":1},"f4":null,"f5":99,"f6":"stringy"}') q;
-- extract_path, extract_path_as_text
select json_extract_path('{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}','f4','f6');
select json_extract_path('{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}','f2');
select json_extract_path('{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}','f2',0::text);
select json_extract_path('{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}','f2',1::text);
select json_extract_path_text('{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}','f4','f6');
select json_extract_path_text('{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}','f2');
select json_extract_path_text('{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}','f2',0::text);
select json_extract_path_text('{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}','f2',1::text);
-- extract_path nulls
select json_extract_path('{"f2":{"f3":1},"f4":{"f5":null,"f6":"stringy"}}','f4','f5') is null as expect_false;
select json_extract_path_text('{"f2":{"f3":1},"f4":{"f5":null,"f6":"stringy"}}','f4','f5') is null as expect_true;
select json_extract_path('{"f2":{"f3":1},"f4":[0,1,2,null]}','f4','3') is null as expect_false;
select json_extract_path_text('{"f2":{"f3":1},"f4":[0,1,2,null]}','f4','3') is null as expect_true;
-- extract_path operators
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f4','f6'];
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f2'];
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f2','0'];
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f2','1'];
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f4','f6'];
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2'];
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2','0'];
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2','1'];
-- corner cases for same
select '{"a": {"b":{"c": "foo"}}}'::json #> '{}';
select '[1,2,3]'::json #> '{}';
select '"foo"'::json #> '{}';
select '42'::json #> '{}';
select 'null'::json #> '{}';
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a'];
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a', null];
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a', ''];
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b'];
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b','c'];
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b','c','d'];
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','z','c'];
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #> array['a','1','b'];
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #> array['a','z','b'];
select '[{"b": "c"}, {"b": "cc"}]'::json #> array['1','b'];
select '[{"b": "c"}, {"b": "cc"}]'::json #> array['z','b'];
select '[{"b": "c"}, {"b": null}]'::json #> array['1','b'];
select '"foo"'::json #> array['z'];
select '42'::json #> array['f2'];
select '42'::json #> array['0'];
select '{"a": {"b":{"c": "foo"}}}'::json #>> '{}';
select '[1,2,3]'::json #>> '{}';
select '"foo"'::json #>> '{}';
select '42'::json #>> '{}';
select 'null'::json #>> '{}';
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a'];
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a', null];
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a', ''];
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b'];
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b','c'];
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b','c','d'];
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','z','c'];
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #>> array['a','1','b'];
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #>> array['a','z','b'];
select '[{"b": "c"}, {"b": "cc"}]'::json #>> array['1','b'];
select '[{"b": "c"}, {"b": "cc"}]'::json #>> array['z','b'];
select '[{"b": "c"}, {"b": null}]'::json #>> array['1','b'];
select '"foo"'::json #>> array['z'];
select '42'::json #>> array['f2'];
select '42'::json #>> array['0'];
-- array_elements
select json_array_elements('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false,"stringy"]');
select * from json_array_elements('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false,"stringy"]') q;
select json_array_elements_text('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false,"stringy"]');
select * from json_array_elements_text('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false,"stringy"]') q;
-- populate_record
create type jpop as (a text, b int, c timestamp);
CREATE DOMAIN js_int_not_null AS int NOT NULL;
CREATE DOMAIN js_int_array_1d AS int[] CHECK(array_length(VALUE, 1) = 3);
CREATE DOMAIN js_int_array_2d AS int[][] CHECK(array_length(VALUE, 2) = 3);
create type j_unordered_pair as (x int, y int);
create domain j_ordered_pair as j_unordered_pair check((value).x <= (value).y);
CREATE TYPE jsrec AS (
i int,
ia _int4,
ia1 int[],
ia2 int[][],
ia3 int[][][],
ia1d js_int_array_1d,
ia2d js_int_array_2d,
t text,
ta text[],
c char(10),
ca char(10)[],
ts timestamp,
js json,
jsb jsonb,
jsa json[],
rec jpop,
reca jpop[]
);
CREATE TYPE jsrec_i_not_null AS (
i js_int_not_null
);
select * from json_populate_record(null::jpop,'{"a":"blurfl","x":43.2}') q;
select * from json_populate_record(row('x',3,'2012-12-31 15:30:56')::jpop,'{"a":"blurfl","x":43.2}') q;
select * from json_populate_record(null::jpop,'{"a":"blurfl","x":43.2}') q;
select * from json_populate_record(row('x',3,'2012-12-31 15:30:56')::jpop,'{"a":"blurfl","x":43.2}') q;
select * from json_populate_record(null::jpop,'{"a":[100,200,false],"x":43.2}') q;
select * from json_populate_record(row('x',3,'2012-12-31 15:30:56')::jpop,'{"a":[100,200,false],"x":43.2}') q;
select * from json_populate_record(row('x',3,'2012-12-31 15:30:56')::jpop,'{"c":[100,200,false],"x":43.2}') q;
select * from json_populate_record(row('x',3,'2012-12-31 15:30:56')::jpop,'{}') q;
SELECT i FROM json_populate_record(NULL::jsrec_i_not_null, '{"x": 43.2}') q;
SELECT i FROM json_populate_record(NULL::jsrec_i_not_null, '{"i": null}') q;
SELECT i FROM json_populate_record(NULL::jsrec_i_not_null, '{"i": 12345}') q;
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": null}') q;
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": 123}') q;
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": [1, "2", null, 4]}') q;
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": [[1, 2], [3, 4]]}') q;
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": [[1], 2]}') q;
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": [[1], [2, 3]]}') q;
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": "{1,2,3}"}') q;
SELECT ia1 FROM json_populate_record(NULL::jsrec, '{"ia1": null}') q;
SELECT ia1 FROM json_populate_record(NULL::jsrec, '{"ia1": 123}') q;
SELECT ia1 FROM json_populate_record(NULL::jsrec, '{"ia1": [1, "2", null, 4]}') q;
SELECT ia1 FROM json_populate_record(NULL::jsrec, '{"ia1": [[1, 2, 3]]}') q;
SELECT ia1d FROM json_populate_record(NULL::jsrec, '{"ia1d": null}') q;
SELECT ia1d FROM json_populate_record(NULL::jsrec, '{"ia1d": 123}') q;
SELECT ia1d FROM json_populate_record(NULL::jsrec, '{"ia1d": [1, "2", null, 4]}') q;
SELECT ia1d FROM json_populate_record(NULL::jsrec, '{"ia1d": [1, "2", null]}') q;
SELECT ia2 FROM json_populate_record(NULL::jsrec, '{"ia2": [1, "2", null, 4]}') q;
SELECT ia2 FROM json_populate_record(NULL::jsrec, '{"ia2": [[1, 2], [null, 4]]}') q;
SELECT ia2 FROM json_populate_record(NULL::jsrec, '{"ia2": [[], []]}') q;
SELECT ia2 FROM json_populate_record(NULL::jsrec, '{"ia2": [[1, 2], [3]]}') q;
SELECT ia2 FROM json_populate_record(NULL::jsrec, '{"ia2": [[1, 2], 3, 4]}') q;
SELECT ia2d FROM json_populate_record(NULL::jsrec, '{"ia2d": [[1, "2"], [null, 4]]}') q;
SELECT ia2d FROM json_populate_record(NULL::jsrec, '{"ia2d": [[1, "2", 3], [null, 5, 6]]}') q;
SELECT ia3 FROM json_populate_record(NULL::jsrec, '{"ia3": [1, "2", null, 4]}') q;
SELECT ia3 FROM json_populate_record(NULL::jsrec, '{"ia3": [[1, 2], [null, 4]]}') q;
SELECT ia3 FROM json_populate_record(NULL::jsrec, '{"ia3": [ [[], []], [[], []], [[], []] ]}') q;
SELECT ia3 FROM json_populate_record(NULL::jsrec, '{"ia3": [ [[1, 2]], [[3, 4]] ]}') q;
SELECT ia3 FROM json_populate_record(NULL::jsrec, '{"ia3": [ [[1, 2], [3, 4]], [[5, 6], [7, 8]] ]}') q;
SELECT ia3 FROM json_populate_record(NULL::jsrec, '{"ia3": [ [[1, 2], [3, 4]], [[5, 6], [7, 8], [9, 10]] ]}') q;
SELECT ta FROM json_populate_record(NULL::jsrec, '{"ta": null}') q;
SELECT ta FROM json_populate_record(NULL::jsrec, '{"ta": 123}') q;
SELECT ta FROM json_populate_record(NULL::jsrec, '{"ta": [1, "2", null, 4]}') q;
SELECT ta FROM json_populate_record(NULL::jsrec, '{"ta": [[1, 2, 3], {"k": "v"}]}') q;
SELECT c FROM json_populate_record(NULL::jsrec, '{"c": null}') q;
SELECT c FROM json_populate_record(NULL::jsrec, '{"c": "aaa"}') q;
SELECT c FROM json_populate_record(NULL::jsrec, '{"c": "aaaaaaaaaa"}') q;
SELECT c FROM json_populate_record(NULL::jsrec, '{"c": "aaaaaaaaaaaaa"}') q;
SELECT ca FROM json_populate_record(NULL::jsrec, '{"ca": null}') q;
SELECT ca FROM json_populate_record(NULL::jsrec, '{"ca": 123}') q;
SELECT ca FROM json_populate_record(NULL::jsrec, '{"ca": [1, "2", null, 4]}') q;
SELECT ca FROM json_populate_record(NULL::jsrec, '{"ca": ["aaaaaaaaaaaaaaaa"]}') q;
SELECT ca FROM json_populate_record(NULL::jsrec, '{"ca": [[1, 2, 3], {"k": "v"}]}') q;
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": null}') q;
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": true}') q;
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": 123.45}') q;
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": "123.45"}') q;
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": "abc"}') q;
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": [123, "123", null, {"key": "value"}]}') q;
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": {"a": "bbb", "b": null, "c": 123.45}}') q;
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": null}') q;
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": true}') q;
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": 123.45}') q;
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": "123.45"}') q;
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": "abc"}') q;
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": [123, "123", null, {"key": "value"}]}') q;
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": {"a": "bbb", "b": null, "c": 123.45}}') q;
SELECT jsa FROM json_populate_record(NULL::jsrec, '{"jsa": null}') q;
SELECT jsa FROM json_populate_record(NULL::jsrec, '{"jsa": 123}') q;
SELECT jsa FROM json_populate_record(NULL::jsrec, '{"jsa": [1, "2", null, 4]}') q;
SELECT jsa FROM json_populate_record(NULL::jsrec, '{"jsa": ["aaa", null, [1, 2, "3", {}], { "k" : "v" }]}') q;
SELECT rec FROM json_populate_record(NULL::jsrec, '{"rec": 123}') q;
SELECT rec FROM json_populate_record(NULL::jsrec, '{"rec": [1, 2]}') q;
SELECT rec FROM json_populate_record(NULL::jsrec, '{"rec": {"a": "abc", "c": "01.02.2003", "x": 43.2}}') q;
SELECT rec FROM json_populate_record(NULL::jsrec, '{"rec": "(abc,42,01.02.2003)"}') q;
SELECT reca FROM json_populate_record(NULL::jsrec, '{"reca": 123}') q;
SELECT reca FROM json_populate_record(NULL::jsrec, '{"reca": [1, 2]}') q;
SELECT reca FROM json_populate_record(NULL::jsrec, '{"reca": [{"a": "abc", "b": 456}, null, {"c": "01.02.2003", "x": 43.2}]}') q;
SELECT reca FROM json_populate_record(NULL::jsrec, '{"reca": ["(abc,42,01.02.2003)"]}') q;
SELECT reca FROM json_populate_record(NULL::jsrec, '{"reca": "{\"(abc,42,01.02.2003)\"}"}') q;
SELECT rec FROM json_populate_record(
row(NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
row('x',3,'2012-12-31 15:30:56')::jpop,NULL)::jsrec,
'{"rec": {"a": "abc", "c": "01.02.2003", "x": 43.2}}'
) q;
-- anonymous record type
SELECT json_populate_record(null::record, '{"x": 0, "y": 1}');
SELECT json_populate_record(row(1,2), '{"f1": 0, "f2": 1}');
SELECT * FROM
json_populate_record(null::record, '{"x": 776}') AS (x int, y int);
-- composite domain
SELECT json_populate_record(null::j_ordered_pair, '{"x": 0, "y": 1}');
SELECT json_populate_record(row(1,2)::j_ordered_pair, '{"x": 0}');
SELECT json_populate_record(row(1,2)::j_ordered_pair, '{"x": 1, "y": 0}');
-- populate_recordset
select * from json_populate_recordset(null::jpop,'[{"a":"blurfl","x":43.2},{"b":3,"c":"2012-01-20 10:42:53"}]') q;
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"a":"blurfl","x":43.2},{"b":3,"c":"2012-01-20 10:42:53"}]') q;
select * from json_populate_recordset(null::jpop,'[{"a":"blurfl","x":43.2},{"b":3,"c":"2012-01-20 10:42:53"}]') q;
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"a":"blurfl","x":43.2},{"b":3,"c":"2012-01-20 10:42:53"}]') q;
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"a":[100,200,300],"x":43.2},{"a":{"z":true},"b":3,"c":"2012-01-20 10:42:53"}]') q;
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"c":[100,200,300],"x":43.2},{"a":{"z":true},"b":3,"c":"2012-01-20 10:42:53"}]') q;
create type jpop2 as (a int, b json, c int, d int);
select * from json_populate_recordset(null::jpop2, '[{"a":2,"c":3,"b":{"z":4},"d":6}]') q;
select * from json_populate_recordset(null::jpop,'[{"a":"blurfl","x":43.2},{"b":3,"c":"2012-01-20 10:42:53"}]') q;
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"a":"blurfl","x":43.2},{"b":3,"c":"2012-01-20 10:42:53"}]') q;
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"a":[100,200,300],"x":43.2},{"a":{"z":true},"b":3,"c":"2012-01-20 10:42:53"}]') q;
-- anonymous record type
SELECT json_populate_recordset(null::record, '[{"x": 0, "y": 1}]');
SELECT json_populate_recordset(row(1,2), '[{"f1": 0, "f2": 1}]');
SELECT i, json_populate_recordset(row(i,50), '[{"f1":"42"},{"f2":"43"}]')
FROM (VALUES (1),(2)) v(i);
SELECT * FROM
json_populate_recordset(null::record, '[{"x": 776}]') AS (x int, y int);
-- empty array is a corner case
SELECT json_populate_recordset(null::record, '[]');
SELECT json_populate_recordset(row(1,2), '[]');
SELECT * FROM json_populate_recordset(NULL::jpop,'[]') q;
SELECT * FROM
json_populate_recordset(null::record, '[]') AS (x int, y int);
-- composite domain
SELECT json_populate_recordset(null::j_ordered_pair, '[{"x": 0, "y": 1}]');
SELECT json_populate_recordset(row(1,2)::j_ordered_pair, '[{"x": 0}, {"y": 3}]');
SELECT json_populate_recordset(row(1,2)::j_ordered_pair, '[{"x": 1, "y": 0}]');
-- negative cases where the wrong record type is supplied
select * from json_populate_recordset(row(0::int),'[{"a":"1","b":"2"},{"a":"3"}]') q (a text, b text);
select * from json_populate_recordset(row(0::int,0::int),'[{"a":"1","b":"2"},{"a":"3"}]') q (a text, b text);
select * from json_populate_recordset(row(0::int,0::int,0::int),'[{"a":"1","b":"2"},{"a":"3"}]') q (a text, b text);
select * from json_populate_recordset(row(1000000000::int,50::int),'[{"b":"2"},{"a":"3"}]') q (a text, b text);
-- test type info caching in json_populate_record()
CREATE TEMP TABLE jspoptest (js json);
INSERT INTO jspoptest
SELECT '{
"jsa": [1, "2", null, 4],
"rec": {"a": "abc", "c": "01.02.2003", "x": 43.2},
"reca": [{"a": "abc", "b": 456}, null, {"c": "01.02.2003", "x": 43.2}]
}'::json
FROM generate_series(1, 3);
SELECT (json_populate_record(NULL::jsrec, js)).* FROM jspoptest;
DROP TYPE jsrec;
DROP TYPE jsrec_i_not_null;
DROP DOMAIN js_int_not_null;
DROP DOMAIN js_int_array_1d;
DROP DOMAIN js_int_array_2d;
DROP DOMAIN j_ordered_pair;
DROP TYPE j_unordered_pair;
--json_typeof() function
select value, json_typeof(value)
from (values (json '123.4'),
(json '-1'),
(json '"foo"'),
(json 'true'),
(json 'false'),
(json 'null'),
(json '[1, 2, 3]'),
(json '[]'),
(json '{"x":"foo", "y":123}'),
(json '{}'),
(NULL::json))
as data(value);
-- json_build_array, json_build_object, json_object_agg
SELECT json_build_array('a',1,'b',1.2,'c',true,'d',null,'e',json '{"x": 3, "y": [1,2,3]}');
SELECT json_build_array('a', NULL); -- ok
SELECT json_build_array(VARIADIC NULL::text[]); -- ok
SELECT json_build_array(VARIADIC '{}'::text[]); -- ok
SELECT json_build_array(VARIADIC '{a,b,c}'::text[]); -- ok
SELECT json_build_array(VARIADIC ARRAY['a', NULL]::text[]); -- ok
SELECT json_build_array(VARIADIC '{1,2,3,4}'::text[]); -- ok
SELECT json_build_array(VARIADIC '{1,2,3,4}'::int[]); -- ok
SELECT json_build_array(VARIADIC '{{1,4},{2,5},{3,6}}'::int[][]); -- ok
SELECT json_build_object('a',1,'b',1.2,'c',true,'d',null,'e',json '{"x": 3, "y": [1,2,3]}');
SELECT json_build_object(
'a', json_build_object('b',false,'c',99),
'd', json_build_object('e',array[9,8,7]::int[],
'f', (select row_to_json(r) from ( select relkind, oid::regclass as name from pg_class where relname = 'pg_class') r)));
SELECT json_build_object('{a,b,c}'::text[]); -- error
SELECT json_build_object('{a,b,c}'::text[], '{d,e,f}'::text[]); -- error, key cannot be array
SELECT json_build_object('a', 'b', 'c'); -- error
SELECT json_build_object(NULL, 'a'); -- error, key cannot be NULL
SELECT json_build_object('a', NULL); -- ok
SELECT json_build_object(VARIADIC NULL::text[]); -- ok
SELECT json_build_object(VARIADIC '{}'::text[]); -- ok
SELECT json_build_object(VARIADIC '{a,b,c}'::text[]); -- error
SELECT json_build_object(VARIADIC ARRAY['a', NULL]::text[]); -- ok
SELECT json_build_object(VARIADIC ARRAY[NULL, 'a']::text[]); -- error, key cannot be NULL
SELECT json_build_object(VARIADIC '{1,2,3,4}'::text[]); -- ok
SELECT json_build_object(VARIADIC '{1,2,3,4}'::int[]); -- ok
SELECT json_build_object(VARIADIC '{{1,4},{2,5},{3,6}}'::int[][]); -- ok
-- empty objects/arrays
SELECT json_build_array();
SELECT json_build_object();
-- make sure keys are quoted
SELECT json_build_object(1,2);
-- keys must be scalar and not null
SELECT json_build_object(null,2);
SELECT json_build_object(r,2) FROM (SELECT 1 AS a, 2 AS b) r;
SELECT json_build_object(json '{"a":1,"b":2}', 3);
SELECT json_build_object('{1,2,3}'::int[], 3);
CREATE TEMP TABLE foo (serial_num int, name text, type text);
INSERT INTO foo VALUES (847001,'t15','GE1043');
INSERT INTO foo VALUES (847002,'t16','GE1043');
INSERT INTO foo VALUES (847003,'sub-alpha','GESS90');
SELECT json_build_object('turbines',json_object_agg(serial_num,json_build_object('name',name,'type',type)))
FROM foo;
SELECT json_object_agg(name, type) FROM foo;
INSERT INTO foo VALUES (999999, NULL, 'bar');
SELECT json_object_agg(name, type) FROM foo;
-- json_object
-- empty object, one dimension
SELECT json_object('{}');
-- empty object, two dimensions
SELECT json_object('{}', '{}');
-- one dimension
SELECT json_object('{a,1,b,2,3,NULL,"d e f","a b c"}');
-- same but with two dimensions
SELECT json_object('{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}');
-- odd number error
SELECT json_object('{a,b,c}');
-- one column error
SELECT json_object('{{a},{b}}');
-- too many columns error
SELECT json_object('{{a,b,c},{b,c,d}}');
-- too many dimensions error
SELECT json_object('{{{a,b},{c,d}},{{b,c},{d,e}}}');
--two argument form of json_object
select json_object('{a,b,c,"d e f"}','{1,2,3,"a b c"}');
-- too many dimensions
SELECT json_object('{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}', '{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}');
-- mismatched dimensions
select json_object('{a,b,c,"d e f",g}','{1,2,3,"a b c"}');
select json_object('{a,b,c,"d e f"}','{1,2,3,"a b c",g}');
-- null key error
select json_object('{a,b,NULL,"d e f"}','{1,2,3,"a b c"}');
-- empty key is allowed
select json_object('{a,b,"","d e f"}','{1,2,3,"a b c"}');
-- json_to_record and json_to_recordset
select * from json_to_record('{"a":1,"b":"foo","c":"bar"}')
as x(a int, b text, d text);
select * from json_to_recordset('[{"a":1,"b":"foo","d":false},{"a":2,"b":"bar","c":true}]')
as x(a int, b text, c boolean);
select * from json_to_recordset('[{"a":1,"b":{"d":"foo"},"c":true},{"a":2,"c":false,"b":{"d":"bar"}}]')
as x(a int, b json, c boolean);
select *, c is null as c_is_null
from json_to_record('{"a":1, "b":{"c":16, "d":2}, "x":8, "ca": ["1 2", 3], "ia": [[1,2],[3,4]], "r": {"a": "aaa", "b": 123}}'::json)
as t(a int, b json, c text, x int, ca char(5)[], ia int[][], r jpop);
select *, c is null as c_is_null
from json_to_recordset('[{"a":1, "b":{"c":16, "d":2}, "x":8}]'::json)
as t(a int, b json, c text, x int);
select * from json_to_record('{"ia": null}') as x(ia _int4);
select * from json_to_record('{"ia": 123}') as x(ia _int4);
select * from json_to_record('{"ia": [1, "2", null, 4]}') as x(ia _int4);
select * from json_to_record('{"ia": [[1, 2], [3, 4]]}') as x(ia _int4);
select * from json_to_record('{"ia": [[1], 2]}') as x(ia _int4);
select * from json_to_record('{"ia": [[1], [2, 3]]}') as x(ia _int4);
select * from json_to_record('{"ia2": [1, 2, 3]}') as x(ia2 int[][]);
select * from json_to_record('{"ia2": [[1, 2], [3, 4]]}') as x(ia2 int4[][]);
select * from json_to_record('{"ia2": [[[1], [2], [3]]]}') as x(ia2 int4[][]);
select * from json_to_record('{"out": {"key": 1}}') as x(out json);
select * from json_to_record('{"out": [{"key": 1}]}') as x(out json);
select * from json_to_record('{"out": "{\"key\": 1}"}') as x(out json);
select * from json_to_record('{"out": {"key": 1}}') as x(out jsonb);
select * from json_to_record('{"out": [{"key": 1}]}') as x(out jsonb);
select * from json_to_record('{"out": "{\"key\": 1}"}') as x(out jsonb);
-- json_strip_nulls
select json_strip_nulls(null);
select json_strip_nulls('1');
select json_strip_nulls('"a string"');
select json_strip_nulls('null');
select json_strip_nulls('[1,2,null,3,4]');
select json_strip_nulls('{"a":1,"b":null,"c":[2,null,3],"d":{"e":4,"f":null}}');
select json_strip_nulls('[1,{"a":1,"b":null,"c":2},3]');
-- an empty object is not null and should not be stripped
select json_strip_nulls('{"a": {"b": null, "c": null}, "d": {} }');
-- json to tsvector
select to_tsvector('{"a": "aaa bbb ddd ccc", "b": ["eee fff ggg"], "c": {"d": "hhh iii"}}'::json);
-- json to tsvector with config
select to_tsvector('simple', '{"a": "aaa bbb ddd ccc", "b": ["eee fff ggg"], "c": {"d": "hhh iii"}}'::json);
-- json to tsvector with stop words
select to_tsvector('english', '{"a": "aaa in bbb ddd ccc", "b": ["the eee fff ggg"], "c": {"d": "hhh. iii"}}'::json);
-- json to tsvector with numeric values
select to_tsvector('english', '{"a": "aaa in bbb ddd ccc", "b": 123, "c": 456}'::json);
-- json_to_tsvector
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"all"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"key"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"string"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"numeric"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"boolean"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '["string", "numeric"]');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"all"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"key"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"string"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"numeric"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"boolean"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '["string", "numeric"]');
-- to_tsvector corner cases
select to_tsvector('""'::json);
select to_tsvector('{}'::json);
select to_tsvector('[]'::json);
select to_tsvector('null'::json);
-- json_to_tsvector corner cases
select json_to_tsvector('""'::json, '"all"');
select json_to_tsvector('{}'::json, '"all"');
select json_to_tsvector('[]'::json, '"all"');
select json_to_tsvector('null'::json, '"all"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '""');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '{}');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '[]');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, 'null');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '["all", null]');
-- ts_headline for json
select ts_headline('{"a": "aaa bbb", "b": {"c": "ccc ddd fff", "c1": "ccc1 ddd1"}, "d": ["ggg hhh", "iii jjj"]}'::json, tsquery('bbb & ddd & hhh'));
select ts_headline('english', '{"a": "aaa bbb", "b": {"c": "ccc ddd fff"}, "d": ["ggg hhh", "iii jjj"]}'::json, tsquery('bbb & ddd & hhh'));
select ts_headline('{"a": "aaa bbb", "b": {"c": "ccc ddd fff", "c1": "ccc1 ddd1"}, "d": ["ggg hhh", "iii jjj"]}'::json, tsquery('bbb & ddd & hhh'), 'StartSel = <, StopSel = >');
select ts_headline('english', '{"a": "aaa bbb", "b": {"c": "ccc ddd fff", "c1": "ccc1 ddd1"}, "d": ["ggg hhh", "iii jjj"]}'::json, tsquery('bbb & ddd & hhh'), 'StartSel = <, StopSel = >');
-- corner cases for ts_headline with json
select ts_headline('null'::json, tsquery('aaa & bbb'));
select ts_headline('{}'::json, tsquery('aaa & bbb'));
select ts_headline('[]'::json, tsquery('aaa & bbb'));