> On 24 Jan 2024, at 20:46, Aleksander Alekseev <aleksan...@timescale.com> > wrote: > > Only the > fact that timestamp from the far past generates UUID from the future > bothers me.
PFA implementation of guard checks, but I'm afraid that this can cause failures
in ID generation unexpected to the user...
See tests
+-- errors in edge cases of UUID v7
+SELECT 1 FROM uuidv7('1970-01-01 00:00:00+00'::timestamptz - interval '0ms');
+SELECT uuidv7('1970-01-01 00:00:00+00'::timestamptz - interval '1ms'); --
ERROR expected
+SELECT 1 FROM
uuidv7(uuid_extract_time('FFFFFFFF-FFFF-7FFF-B000-000000000000'));
+SELECT
uuidv7(uuid_extract_time('FFFFFFFF-FFFF-7FFF-B000-000000000000')+'1ms'); --
ERROR expected
Range is from 1970-01-01 00:00:00 to 10889-08-02 05:31:50.655. I'm not sure we
should give this information in error message...
Thanks!
Best regards, Andrey Borodin.
v13-0001-Implement-UUID-v7.patch
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