Right now, hive does not support multiple distinct in the same query - The only workaround would be to have 2 different queries and then combine the results manually.
If you need it, can you file a jira ? We will try to look at it asap Thanks, -namit From: Alexis Rondeau [mailto:alexis.rond...@gmail.com] Sent: Wednesday, May 06, 2009 10:05 AM To: hive-user@hadoop.apache.org Subject: Individual distinction on two or more columns Hi there, I'm currently getting my feet wet with Hive and am very impressed how quick and easy it was to get going and try things out. I am trying to run a query using count(distinct) on two separate columns is failing as follows: hive> select count(distinct user), count(distinct session) from actions; FAILED: Error in semantic analysis: line 2:7 DISTINCT on Different Columns not Supported user While the similar semantics work fine in sql, is there a recommended workaround for this limitation or something that will be included in future releases? Any pointers are appreciated, thank you very much in advance, Alexis -- Alexis Rondeau
