Add equals and hashCode overrides to Type.Uuid

fdb-record-layer-core/src/main/java/com/apple/foundationdb/record/query/plan/cascades/typing/Type.java

@@ -1411,34 +1411,34 @@
      * Special {@link Type.Record} that is undefined.
      */
     class AnyRecord implements Type, Erasable {
         private final boolean isNullable;
 
         @Nonnull
         private final Supplier<Integer> hashCodeSupplier = Suppliers.memoize(this::computeHashCode);
 
         public AnyRecord(final boolean isNullable) {
             this.isNullable = isNullable;
         }
 
         private int computeHashCode() {
             return Objects.hash(getTypeCode().name().hashCode(), isNullable());
         }
 
         /**
          * {@inheritDoc}
          */
         @Override
         public TypeCode getTypeCode() {
             return TypeCode.RECORD;
         }
 
         /**
          * {@inheritDoc}
          */
         @Override
         public boolean isNullable() {
             return isNullable;
         }
 
         @Nonnull
         @Override
@@ -3002,21 +3002,31 @@
 
         public static final String MESSAGE_NAME = TupleFieldsProto.UUID.getDescriptor().getName();
 
         private final boolean isNullable;
 
+        /**
+         * Memoized hash function.
+         */
+        @Nonnull
+        private final Supplier<Integer> hashFunctionSupplier = Suppliers.memoize(this::computeHashCode);
+
         private Uuid(boolean isNullable) {
             this.isNullable = isNullable;
         }
 
+        private int computeHashCode() {
+            return Objects.hash(getTypeCode().name().hashCode(), isNullable());
+        }
+
         @Override
         public TypeCode getTypeCode() {
             return TypeCode.UUID;
         }
 
         @Override
         public boolean isNullable() {
             return isNullable;
         }
 
         @Nonnull
         @Override
@@ -3059,6 +3069,29 @@
                     .build();
         }
 
+        @Override
+        public int hashCode() {
+            return hashFunctionSupplier.get();
+        }
+
+        @Override
+        public boolean equals(final Object other) {
+            if (other == null) {
+                return false;
+            }
+
+            if (other == this) {
+                return true;
+            }
+
+            if (getClass() != other.getClass()) {
+                return false;
+            }
+
+            final var otherType = (Uuid)other;
+            return getTypeCode() == otherType.getTypeCode() && isNullable() == otherType.isNullable();
+        }
+
         @Override
         public boolean isUuid() {
             return true;