Amogh Margoor created CALCITE-1130:
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Summary: Add unary operator support for IS_NULL and IS_NOT_NULL to
RexImplicationChecker
Key: CALCITE-1130
URL: https://issues.apache.org/jira/browse/CALCITE-1130
Project: Calcite
Issue Type: Improvement
Reporter: Amogh Margoor
Assignee: Julian Hyde
Currently we support only SQL Comparison operators (SqlKind.COMPARE) for
checking if one predicate implies another using RexImplicationChecker.
We would like to extend it for couple of Unary operators based on user request
( CALCITE-1104): IS_NULL and IS_NOT_NULL
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