ArnavBalyan opened a new pull request, #8295:
URL: https://github.com/apache/paimon/pull/8295
### Purpose
- Float and double comparators reused the integer ternary, which is not
correct since nan compares equal to everything and signed zero is treated as
equal.
- This silently misorders any sort or clustering on a float or double column
containing nan, and can cause buggy java sort.
- Switch the float and double cases to the jdk total order comparison.
### Tests
- UT
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