Chunwei Lei created CALCITE-3803:
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Summary: Enhance RexSimplify to simplify 'a>1 or (a<3 and b)' to
'a>1 or b' if column a is not nullable
Key: CALCITE-3803
URL: https://issues.apache.org/jira/browse/CALCITE-3803
Project: Calcite
Issue Type: Improvement
Components: core
Reporter: Chunwei Lei
Assignee: Chunwei Lei
For {{a>1 or (a<3 and b)}}, with short-circuit, we know {{a<=1}} if {{a>1}} is
false when column a is not nullable. Then {{(a<3 and b) }}can be simplified to
{{b}}. Thus, {{a>1 or (a<3 and b) }}is simplified to {{a>1 or b.}}
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