danny0405 commented on a change in pull request #1609: [CALCITE-3520] Type cast
from primitive to box is not correct
URL: https://github.com/apache/calcite/pull/1609#discussion_r355158523
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File path:
core/src/main/java/org/apache/calcite/adapter/enumerable/EnumUtils.java
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@@ -400,8 +400,11 @@ public static Expression convert(Expression operand, Type
fromType,
if (operand instanceof UnaryExpression) {
UnaryExpression una = (UnaryExpression) operand;
if (una.nodeType == ExpressionType.Convert
- || Primitive.of(una.getType()) == toBox) {
- return Expressions.box(una.expression, toBox);
+ && Primitive.of(una.getType()) == toBox) {
+ Primitive origin = Primitive.of(una.expression.type);
Review comment:
Why change `||` to `&&`.
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