It’s probably a bug. Can you file a JIRA with the full callstack? As far as I know, list bucketing is not widely used, so the bug might have been introduced unwittingly, but it’s hard to tell without seeing the callstack.
From: Shangzhong zhu <shanzh...@gmail.com<mailto:shanzh...@gmail.com>> Reply-To: "user@hive.apache.org<mailto:user@hive.apache.org>" <user@hive.apache.org<mailto:user@hive.apache.org>> Date: Friday, February 12, 2016 at 18:59 To: "user@hive.apache.org<mailto:user@hive.apache.org>" <user@hive.apache.org<mailto:user@hive.apache.org>> Subject: list bucketing join Hi All, List bucketing seems to be a very nice feature to further partition on skewed values. However when I am testing this feature out, seems to me it doesn't work well to join a list bucketing table with a non-list bucketing table. List bucketing tables: Partitioned table. I defined two skewed columns. RCFile format. Non list bucketing tables: Non-partitioned table, RCFile format. When join these two tables, I got the following error, even just doing a "explain": FAILED: NullPointerException null Anybody has any clues here? Can someone give me a working join example of list bucketing table. Appreciate your help! Thanks, Shanzhong
