-- json_get functions -- SELECT json_get_int(parse_json('{"a": {"b": {"c": 1}}}'), 'a.b.c'); SELECT json_get_float(parse_json('{"a": {"b": {"c": 1.234}}}'), 'a:b.c'); SELECT json_get_string(parse_json('{"a": {"b": {"c": "foo"}}}'), 'a.b:c'); SELECT json_get_bool(parse_json('{"a": {"b": {"c": true}}}'), 'a.b["c"]'); SELECT json_get_int(parse_json('{"a": {"b": {"c": {"d": 1}}}}'), 'a.b'); SELECT json_get_string(parse_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(parse_json('{"a": {"b": {"c": 1}}}'), 1); INSERT INTO jsons VALUES(parse_json('{"a": {"b": {"c": 1.234}}}'), 2); INSERT INTO jsons VALUES(parse_json('{"a": {"b": {"c": "foo"}}}'), 3); INSERT INTO jsons VALUES(parse_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(parse_json('["a", "bcde", "", "Long time ago, there is a little pig flying in the sky"]'), 1); INSERT INTO jsons VALUES(parse_json('[true, false, false, false]'), 2); INSERT INTO jsons VALUES(parse_json('[1, 0, -2147483649, 2147483648]'), 3); INSERT INTO jsons VALUES(parse_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; -- test functions in WHERE clause -- CREATE TABLE jsons(j JSON, ts timestamp time index); INSERT INTO jsons VALUES(parse_json('{"a": {"b": {"c": 1}}}'), 1); INSERT INTO jsons VALUES(parse_json('{"a": {"b": {"c": 1.234}}}'), 2); INSERT INTO jsons VALUES(parse_json('{"a": {"b": {"c": "foo"}}}'), 3); INSERT INTO jsons VALUES(parse_json('{"a": {"b": {"c": true}}}'), 4); SELECT json_to_string(j) FROM jsons WHERE json_get_int(j, 'a.b.c') = 1; SELECT json_to_string(j) FROM jsons WHERE json_get_float(j, 'a.b.c') = 1.234; SELECT json_to_string(j) FROM jsons WHERE json_get_string(j, 'a.b.c') = 'foo'; SELECT json_to_string(j) FROM jsons WHERE json_get_bool(j, 'a.b.c') = true; SELECT json_to_string(j) FROM jsons WHERE CAST(json_get_int(j, 'a.b.c') AS BOOLEAN); DROP TABLE jsons;