mirror of
https://github.com/GreptimeTeam/greptimedb.git
synced 2026-01-09 06:42:57 +00:00
67fb3d003e
* feat: add respectiv get_by_path udf for json type * Apply review comments Co-authored-by: Weny Xu <wenymedia@gmail.com> * fix: fix compile error * refactor: change name of UDFs, add some tests --------- Co-authored-by: Weny Xu <wenymedia@gmail.com>
57 lines
1.7 KiB
SQL
57 lines
1.7 KiB
SQL
-- json_get functions --
|
|
SELECT json_get_int(to_json('{"a": {"b": {"c": 1}}}'), 'a.b.c');
|
|
|
|
SELECT json_get_float(to_json('{"a": {"b": {"c": 1.234}}}'), 'a:b.c');
|
|
|
|
SELECT json_get_string(to_json('{"a": {"b": {"c": "foo"}}}'), 'a.b:c');
|
|
|
|
SELECT json_get_bool(to_json('{"a": {"b": {"c": true}}}'), 'a.b["c"]');
|
|
|
|
SELECT json_get_int(to_json('{"a": {"b": {"c": {"d": 1}}}}'), 'a.b');
|
|
|
|
SELECT json_get_string(to_json('{"a": {"b": {"c": {"d": 1}}}}'), 'a.b');
|
|
|
|
-- test functions with table rows --
|
|
CREATE TABLE jsons(j JSON, ts timestamp time index);
|
|
|
|
INSERT INTO jsons VALUES(to_json('{"a": {"b": {"c": 1}}}'), 1);
|
|
|
|
INSERT INTO jsons VALUES(to_json('{"a": {"b": {"c": 1.234}}}'), 2);
|
|
|
|
INSERT INTO jsons VALUES(to_json('{"a": {"b": {"c": "foo"}}}'), 3);
|
|
|
|
INSERT INTO jsons VALUES(to_json('{"a": {"b": {"c": true}}}'), 4);
|
|
|
|
SELECT json_get_int(j, 'a.b.c') FROM jsons;
|
|
|
|
SELECT json_get_float(j, 'a["b"].c') FROM jsons;
|
|
|
|
SELECT json_get_string(j, 'a.b.c?(@ == 1)') FROM jsons;
|
|
|
|
SELECT json_get_bool(j, 'a.b.c') FROM jsons;
|
|
|
|
SELECT json_get_int(j, 'a.b["c"]') FROM jsons;
|
|
|
|
DROP TABLE jsons;
|
|
|
|
-- test functions with arrays --
|
|
CREATE TABLE jsons(j JSON, ts timestamp time index);
|
|
|
|
INSERT INTO jsons VALUES(to_json('["a", "bcde", "", "Long time ago, there is a little pig flying in the sky"]'), 1);
|
|
|
|
INSERT INTO jsons VALUES(to_json('[true, false, false, false]'), 2);
|
|
|
|
INSERT INTO jsons VALUES(to_json('[1, 0, -2147483649, 2147483648]'), 3);
|
|
|
|
INSERT INTO jsons VALUES(to_json('[1.2, 3.1415926535897932384626, -3e123, 1e100]'), 4);
|
|
|
|
SELECT json_get_int(j, '[0]') FROM jsons;
|
|
|
|
SELECT json_get_float(j, '[1]') FROM jsons;
|
|
|
|
SELECT json_get_bool(j, '[2]') FROM jsons;
|
|
|
|
SELECT json_get_string(j, '[3]') FROM jsons;
|
|
|
|
DROP TABLE jsons;
|