caicancai commented on code in PR #3689:
URL: https://github.com/apache/calcite/pull/3689#discussion_r1502117442
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core/src/main/java/org/apache/calcite/sql/type/ReturnTypes.java:
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@@ -396,6 +396,13 @@ public static SqlCall stripSeparator(SqlCall call) {
public static final SqlReturnTypeInference DOUBLE_NULLABLE =
DOUBLE.andThen(SqlTypeTransforms.TO_NULLABLE);
+ /**
+ * Type-inference strategy whereby the result type of a call is a nullable
+ * Double.
Review Comment:
You are worthy of being the author of this PR. I tried to add it, but it
seemed that it did not meet the calcite specifications when I added it.
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