[HIVE-18610] Performance: ListKeyWrapper does not check for hashcode equals, before comparing members

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: Query Processor
• Labels: complextype performance
• Assignee: Gopal Vijayaraghavan
• Reporter: Gopal Vijayaraghavan
• Created: 02/Feb/18 06:46
• Updated: 22/May/18 23:14
• Resolved: 07/Mar/18 06:09

Description

ListKeyWrapper::equals()

    @Override
    public boolean equals(Object obj) {
      if (!(obj instanceof ListKeyWrapper)) {
        return false;
      }
      Object[] copied_in_hashmap = ((ListKeyWrapper) obj).keys;
      return equalComparer.areEqual(copied_in_hashmap, keys);
    }