DonnyZone 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_r322639276
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File path: core/src/main/java/org/apache/calcite/sql/SqlBinaryOperator.java
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@@ -186,6 +186,10 @@ public RelDataType deriveType(
final SqlMonotonicity mono0 = call.getOperandMonotonicity(0);
final SqlMonotonicity mono1 = call.getOperandMonotonicity(1);
if (mono1 == SqlMonotonicity.CONSTANT) {
+ // e.g., mono / null --> constant (null!)
Review comment:
Hey, @jinxing64, thanks for review. I just follow the comment style in line
197, Maybe I can make it more clear.
`// mono / zero --> constant (infinity!) `
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