[HIVE-12090] Dead-code: Vectorized map-join murmur hash is run twice

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.3.0, 2.0.0
• Fix Version/s: 1.3.0, 2.0.0
• Component/s: Vectorization
• Release Note: Dead-code: Vectorized map-join runs Murmurhash twice
• Assignee: Gopal Vijayaraghavan
• Reporter: Gopal Vijayaraghavan
• Created: 12/Oct/15 08:06
• Updated: 16/Feb/16 23:50
• Resolved: 13/Oct/15 21:54

Description

Caught by mmccline during code reviews.

   public JoinUtil.JoinResult setDirect(byte[] bytes, int offset, int length,
        BytesBytesMultiHashMap.Result hashMapResult) {

      int keyHash = WriteBuffers.murmurHash(bytes, offset, length);
      aliasFilter = hashMap.getValueResult(bytes, offset, length, hashMapResult);