Tianmu error ERROR 6 (HY000)，when execute select..where like NULL #763

storage/tianmu/core/query.cpp

@@ -1326,7 +1326,7 @@ CondID Query::ConditionNumberFromComparison(Item *conds, const TabID &tmp_table,
           !(an_arg->field_type() == MYSQL_TYPE_VARCHAR || an_arg->field_type() == MYSQL_TYPE_STRING ||
             an_arg->field_type() == MYSQL_TYPE_VAR_STRING || an_arg->field_type() == MYSQL_TYPE_BLOB ||
             an_arg->field_type() == MYSQL_TYPE_NULL)) { //issue: #763, Argument of LIKE is NULL
-        return CondID(-1);  // Argument of LIKE is not a string and null, return to MySQL.
+        return CondID(-1);  // Argument of LIKE is not a string or null, return to MySQL.
       }
     }
   }