ClickHouse/tests/queries/0_stateless/00396_uuid.sql
ltrk2 2c902bbc65
Implement support for different UUID binary formats ()
* Implement support for different UUID binary formats

* Declare error codes that the implementation uses

* Make single-argument constructor explicit

* Modernize parts of the solution

* Make improvements based on review comments

* Declare an error code being used
2022-10-25 21:57:50 +02:00

20 lines
1.5 KiB
SQL

SELECT UUIDNumToString(toFixedString(unhex('0123456789ABCDEF0123456789ABCDEF' AS hex) AS bytes, 16) AS uuid_binary) AS uuid_string, hex(UUIDStringToNum(uuid_string)) = hex AS test1, UUIDStringToNum(uuid_string) = bytes AS test2;
SELECT UUIDNumToString(toFixedString(unhex(materialize('0123456789ABCDEF0123456789ABCDEF') AS hex) AS bytes, 16) AS uuid_binary) AS uuid_string, hex(UUIDStringToNum(uuid_string)) = hex AS test1, UUIDStringToNum(uuid_string) = bytes AS test2;
SELECT hex(UUIDStringToNum('01234567-89ab-cdef-0123-456789abcdef'));
SELECT hex(UUIDStringToNum(materialize('01234567-89ab-cdef-0123-456789abcdef')));
SELECT '01234567-89ab-cdef-0123-456789abcdef' AS str, UUIDNumToString(UUIDStringToNum(str)), UUIDNumToString(UUIDStringToNum(toFixedString(str, 36)));
SELECT materialize('01234567-89ab-cdef-0123-456789abcdef') AS str, UUIDNumToString(UUIDStringToNum(str)), UUIDNumToString(UUIDStringToNum(toFixedString(str, 36)));
SELECT toString(toUUID('3f1ed72e-f7fe-4459-9cbe-95fe9298f845'));
-- conversion back and forth to big-endian hex string
with generateUUIDv4() as uuid,
identity(lower(hex(reverse(reinterpretAsString(uuid))))) as str,
reinterpretAsUUID(reverse(unhex(str))) as uuid2
select uuid = uuid2;
select '-- UUID variants --';
select hex(UUIDStringToNum('00112233-4455-6677-8899-aabbccddeeff', 1));
select hex(UUIDStringToNum('00112233-4455-6677-8899-aabbccddeeff', 2));
select UUIDNumToString(UUIDStringToNum('00112233-4455-6677-8899-aabbccddeeff', 1), 1);
select UUIDNumToString(UUIDStringToNum('00112233-4455-6677-8899-aabbccddeeff', 2), 2);