danny0405 commented on a change in pull request #2019:
URL: https://github.com/apache/calcite/pull/2019#discussion_r446743740
##########
File path: core/src/test/java/org/apache/calcite/sql/type/SqlTypeUtilTest.java
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@@ -117,6 +120,47 @@
SqlTypeCoercionRule.THREAD_PROVIDERS.set(defaultRules);
}
+ @Test void testEqualAsCollectionSansNullability() {
+ final SqlTypeFactoryImpl factory =
+ new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
+ final RelDataType bigint = factory.createSqlType(SqlTypeName.BIGINT);
+
+ // case array
+ final RelDataType arrayNullable =
+ new ArraySqlType(factory.createTypeWithNullability(bigint, true),
false);
+ final RelDataType arrayNotNull =
+ new ArraySqlType(factory.createTypeWithNullability(bigint, false),
false);
+ assertThat(equalAsCollectionSansNullability(factory, arrayNullable,
arrayNotNull),
+ is(true));
+
+ // case multiset
+ final RelDataType setNullable =
+ new MultisetSqlType(factory.createTypeWithNullability(bigint, true),
false);
+ final RelDataType setNotNull =
+ new MultisetSqlType(factory.createTypeWithNullability(bigint, false),
false);
+ assertThat(equalAsCollectionSansNullability(factory, setNullable,
setNotNull),
+ is(true));
+
+ // multiset and array are not equal.
+ assertThat(equalAsCollectionSansNullability(factory, arrayNotNull,
setNotNull),
+ is(false));
+ }
+
+ @Test void testEqualAsMapSansNullability() {
+ final SqlTypeFactoryImpl factory =
+ new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
+ final RelDataType bigint = factory.createSqlType(SqlTypeName.BIGINT);
Review comment:
Use type from `SqlTypeFixture` if possible.
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