mustafaiman opened a new pull request #1039: URL: https://github.com/apache/hive/pull/1039
Full outer join keeps filtered array for all items seen for each table as it reads rows. This is later used to determine if a right table row has at least one matching row from left table. If not, then "NULL-rightrow" is emitted. The same goes for "leftrow-NULL" output too. These filtered arrays are per group in reducer. However, rows are read until the first item of the next group is read. This leads to mixing filtered information of the next group to current group causing wrong results for full outer join. Change-Id: I916bfeb354a0d3d5c2eca151887adab3934569f6 ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
