danny0405 commented on a change in pull request #1448: [CALCITE-3332] Query
failed with AssertionError: cannot cast null as class java.math.BigDecima
URL: https://github.com/apache/calcite/pull/1448#discussion_r323659868
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File path:
core/src/main/java/org/apache/calcite/sql/fun/SqlMonotonicBinaryOperator.java
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@@ -55,12 +55,22 @@ public SqlMonotonicBinaryOperator(
//~ Methods ----------------------------------------------------------------
@Override public SqlMonotonicity getMonotonicity(SqlOperatorBinding call) {
+ // specially handle cases with null operands
+ if (hasNullOperand(call)) {
+ switch (this.kind) {
+ case PLUS:
+ case MINUS:
+ case TIMES:
+ return SqlMonotonicity.CONSTANT;
Review comment:
I'm a little confused why you handle `+`, `-`, `*` in
`SqlMonotonicBinaryOperator` and `DIVIDE` in `SqlBinaryOperator`, did you try
`SqlKind.BINARY_ARITHMETIC` ?
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