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Posted to issues@calcite.apache.org by "Amogh Margoor (JIRA)" <ji...@apache.org> on 2016/03/08 07:01:40 UTC

[jira] [Created] (CALCITE-1130) Add unary operator support for IS_NULL and IS_NOT_NULL to RexImplicationChecker

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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