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https://github.com/GreptimeTeam/greptimedb.git
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f73fb82133
* feat: add respective json_is UDFs * refactor: rename to_json to parse_json * chore: happy clippy * chore: some rename * fix: small fixes
54 lines
1.3 KiB
SQL
54 lines
1.3 KiB
SQL
-- json_is functions --
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SELECT json_is_object(parse_json('{"a": 1}'));
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SELECT json_is_array(parse_json('[1, 2, 3]'));
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SELECT json_is_int(parse_json('1'));
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SELECT json_is_bool(parse_json('true'));
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SELECT json_is_null(parse_json('null'));
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SELECT json_is_float(parse_json('1.2'));
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SELECT json_is_string(parse_json('"foo"'));
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SELECT json_is_null(parse_json('{"a": 1}'));
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SELECT json_is_string(parse_json('[1, 2, 3]'));
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SELECT json_is_float(parse_json('1'));
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-- test json_is functions in table rows and WHERE clause --
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CREATE TABLE jsons(j JSON, ts timestamp time index);
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INSERT INTO jsons VALUES(parse_json('{"a": 1}'), 1);
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INSERT INTO jsons VALUES(parse_json('[1, 2, 3]'), 2);
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INSERT INTO jsons VALUES(parse_json('1'), 3);
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INSERT INTO jsons VALUES(parse_json('true'), 4);
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INSERT INTO jsons VALUES(parse_json('null'), 5);
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INSERT INTO jsons VALUES(parse_json('1.2'), 6);
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INSERT INTO jsons VALUES(parse_json('"foo"'), 7);
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SELECT json_to_string(j) FROM jsons WHERE json_is_object(j);
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SELECT json_to_string(j) FROM jsons WHERE json_is_array(j);
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SELECT json_to_string(j) FROM jsons WHERE json_is_int(j);
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SELECT json_to_string(j) FROM jsons WHERE json_is_bool(j);
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SELECT json_to_string(j) FROM jsons WHERE json_is_null(j);
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SELECT json_to_string(j) FROM jsons WHERE json_is_float(j);
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SELECT json_to_string(j) FROM jsons WHERE json_is_string(j);
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DROP TABLE jsons;
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