julianhyde commented on code in PR #3785:
URL: https://github.com/apache/calcite/pull/3785#discussion_r1597162522
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core/src/main/java/org/apache/calcite/sql/type/ReturnTypes.java:
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@@ -551,6 +551,13 @@ public static SqlCall stripSeparator(SqlCall call) {
opBinding -> opBinding.getTypeFactory().leastRestrictive(
opBinding.collectOperandTypes());
+ public static final SqlReturnTypeInference NVL2_RESTRICTIVE = opBinding -> {
+ RelDataType opType1 = opBinding.getOperandType(1);
+ RelDataType opType2 = opBinding.getOperandType(2);
+ return opBinding.getOperandType(0).getSqlTypeName() == SqlTypeName.NULL ?
opType2 : opType1;
+ };
+
+
Review Comment:
remove blank line
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