bug#24820 CREATE INDEX ....USING HASH on NDB table creates ordered index, not...

bug#24820  CREATE INDEX ....USING HASH on NDB table creates ordered index, not HASH index: Added error checking

mysql-test/r/ndb_index_ordered.result

@@ -658,3 +658,12 @@ insert into t1 (a, c) values (1,'aaa'),(3,'bbb');
 select count(*) from t1 where c<'bbb';
 count(*)
 1
+create table nationaldish (DishID int(10) unsigned NOT NULL AUTO_INCREMENT,
+CountryCode char(3) NOT NULL,
+DishTitle varchar(64) NOT NULL,
+calories smallint(5) unsigned DEFAULT NULL,
+PRIMARY KEY (DishID)
+) ENGINE=ndbcluster;
+create index i using hash on nationaldish(countrycode,calories);
+ERROR HY000: Can't create table './test/#sql-3c51_2.frm' (errno: 138)
+drop table nationaldish;

mysql-test/t/ndb_index_ordered.test

@@ -356,3 +356,17 @@ insert into t1 (a, c) values (1,'aaa'),(3,'bbb');
 select count(*) from t1 where c<'bbb';
 
 # End of 4.1 tests
+
+# bug#24820 CREATE INDEX ....USING HASH on NDB table creates ordered index, not HASH index
+
+create table nationaldish (DishID int(10) unsigned NOT NULL AUTO_INCREMENT,
+                           CountryCode char(3) NOT NULL,
+                           DishTitle varchar(64) NOT NULL,
+                           calories smallint(5) unsigned DEFAULT NULL,
+                           PRIMARY KEY (DishID)
+                           ) ENGINE=ndbcluster;
+
+--error ER_CANT_CREATE_TABLE
+create index i using hash on nationaldish(countrycode,calories);
+
+drop table nationaldish;

sql/ha_ndbcluster.cc

@@ -1107,6 +1107,16 @@ int ha_ndbcluster::build_index_list(Ndb *ndb, TABLE *tab, enum ILBP phase)
 	error= create_unique_index(unique_index_name, key_info);
         break;
       case ORDERED_INDEX:
+	if (key_info->algorithm == HA_KEY_ALG_HASH)
+	{
+	  push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_ERROR,
+			      ER_UNSUPPORTED_EXTENSION,
+			      ER(ER_UNSUPPORTED_EXTENSION),
+			      "Ndb does not support non-unique "
+			      "hash based indexes");
+	  error= HA_ERR_UNSUPPORTED;
+	  break;
+	}
         error= create_ordered_index(index_name, key_info);
         break;
       default: