morrySnow opened a new pull request, #28386:
URL: https://github.com/apache/doris/pull/28386
if reference is nullable, even if range is all, we should not return true,
but should return reference is not null. for example,
before simplify: c1 > 5 or c1 < 10
after simplify:
c1 is nullable: c1 IS NOT NULL
c1 is not nullable: TRUE
## Proposed changes
Issue Number: close #xxx
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