Alessandro Solimando created CALCITE-4917: ---------------------------------------------
Summary: Add test for 'IS NOT NULL(a) AND a=b' simplifies to "a=b" for UnknownAsFalse semantics Key: CALCITE-4917 URL: https://issues.apache.org/jira/browse/CALCITE-4917 Project: Calcite Issue Type: Test Components: core Affects Versions: 1.28.0 Reporter: Alessandro Solimando Assignee: Alessandro Solimando Simplification (from _RexSimplify_ class) is mostly covered is {_}RexProgramTest{_}, a test for expressions of the form "IS NOT NULL(a) AND a=b" => "a=b" under the "UnknownAsFalse" semantics and not simplified under "UnknownAsUnknown" one, seems uncovered. Since I had to write a test to make sure the simplification was as expected, I assume others might end up doing the same, and that the test will both act as documentation and it will also protect against regressions. -- This message was sent by Atlassian Jira (v8.20.1#820001)