xiedeyantu commented on code in PR #4730:
URL: https://github.com/apache/calcite/pull/4730#discussion_r2700314334
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core/src/main/java/org/apache/calcite/runtime/SqlFunctions.java:
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@@ -2180,6 +2190,65 @@ public static boolean neAny(Object b0, Object b1) {
return !eqAny(b0, b1);
}
+ private static boolean eqNullable(@Nullable Object b0, @Nullable Object b1) {
+ if (b0 == b1) {
+ return true;
+ }
+ if (b0 == null || b1 == null) {
+ return false;
+ }
+ if (b0 instanceof List && b1 instanceof List) {
+ return Functions.compareLists((List<?>) b0, (List<?>) b1) == 0;
+ }
+ if (b0 instanceof Map && b1 instanceof Map) {
+ return Functions.compareMaps((Map<?, ?>) b0, (Map<?, ?>) b1) == 0;
+ }
+ if (b0 instanceof Object[] && b1 instanceof Object[]) {
+ return Functions.compareObjectArrays((Object[]) b0, (Object[]) b1) == 0;
+ }
+ if (b0.getClass().equals(b1.getClass())) {
+ if (b0 instanceof BigDecimal) {
+ return eq((BigDecimal) b0, (BigDecimal) b1);
+ }
+ return b0.equals(b1);
+ }
+ if (b0 instanceof Number && b1 instanceof Number) {
+ return eq(toBigDecimal((Number) b0), toBigDecimal((Number) b1));
+ }
+ return false;
+ }
+
+ /** Compares two nullable objects recursively if they are collections.
+ * Nulls are treated as larger than non-null values. */
+ private static int compareNullable(@Nullable Object b0, @Nullable Object b1,
String op) {
Review Comment:
Sorry, I forgot to mention that this op is used to record the type of
comparison operation for user-friendly display in error messages. If there are
no issues, I will add it to the javadoc.
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