Chunwei Lei created CALCITE-3809:
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Summary: RexSimplify simplifies nondeterministic function
incorrectly
Key: CALCITE-3809
URL: https://issues.apache.org/jira/browse/CALCITE-3809
Project: Calcite
Issue Type: Bug
Components: core
Affects Versions: 1.21.0
Reporter: Chunwei Lei
Assignee: Chunwei Lei
Fix For: 1.22.0
For example, {{rand() = rand()}} will be simplified it to {{IS NOT
NULL(rand())}}, which is wrong because {{rand() = rand()}} might be false while
{{IS NOT NULL(rand())}} is always true.
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