Zoltan Haindrich created HIVE-25732: ---------------------------------------
Summary: Improve HLL insert performance Key: HIVE-25732 URL: https://issues.apache.org/jira/browse/HIVE-25732 Project: Hive Issue Type: Improvement Reporter: Zoltan Haindrich HIVE-23095 have fixed a correctness issue and removed a temporary list which supposed to speed up the algorithm and thus it suffered some performance degradation. There are ways to put back some of that stuff; or consider other options to gain back the lost performance - now that the bug is fixed it should be a performance only improvement ticket. It would be interesting to know how much time we spend on updating this DS during a large insert to know the weight of such an improvement. -- This message was sent by Atlassian Jira (v8.20.1#820001)