Add tests that random()
and uuid()
produce unique values for each row
#10248
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Which issue does this PR close?
Closes #10247
Rationale for this change
We have a gap in test coverage
All the tests passed, but we almost broke this behavior, but caught it in review #10193 (comment)
What changes are included in this PR?
random
anduuid
Note I also verified that these tests fail at 864d197 (part of #10193 which almost introduced a bug)
Are these changes tested?
Only tests
Are there any user-facing changes?