[GitHub] [calcite] liyafan82 commented on a change in pull request #2256: [CALCITE-4392] The operation of checking types equal ignoring null can be more efficient

[GitBox]

liyafan82 commented on a change in pull request #2256:
URL: https://github.com/apache/calcite/pull/2256#discussion_r521997332



##########
File path: core/src/test/java/org/apache/calcite/sql/type/SqlTypeUtilTest.java
##########
@@ -197,4 +198,35 @@ private RelDataType struct(RelDataType...relDataTypes) {
     }
     return builder.build();
   }
+
+  private void compareTypesIgnoringNullability(
+      RelDataType type1, RelDataType type2, boolean expectedResult) {
+    String msg = String.format(Locale.ROOT,
+        "%s and %s are expected to be %s ignoring nullability.",
+        type1.getFullTypeString(),
+        type2.getFullTypeString(),
+        expectedResult ? "equal" : "unequal");
+

Review comment:
       Sounds reasonable. Revised accordingly. Thank you. 




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