caicancai commented on code in PR #3785:
URL: https://github.com/apache/calcite/pull/3785#discussion_r1592619944
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core/src/main/java/org/apache/calcite/sql/type/OperandTypes.java:
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@@ -986,6 +986,14 @@ public static SqlSingleOperandTypeChecker same(int
operandCount,
public static final SqlSingleOperandTypeChecker ANY_ANY =
family(SqlTypeFamily.ANY, SqlTypeFamily.ANY);
+
+ public static final SqlSingleOperandTypeChecker SECOND_THIRD_SAME =
+ new SameOperandTypeChecker(3) {
Review Comment:
I think I understand what you mean, like nvl2(2.0, 'abc', 2) is allowed in
spark, but
nvl2(2.0, true, 2) is not allowed because Boolean and numeric are not
comparable
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