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Sergey Shelukhin edited comment on HIVE-12809 at 1/19/16 1:10 AM: ------------------------------------------------------------------ +1. The initial noNulls set for the common case is kind of a separate change from the first-column shortcut, right? was (Author: sershe): +1 > Vectorization: fast-path for coalesce if input.noNulls = true > ------------------------------------------------------------- > > Key: HIVE-12809 > URL: https://issues.apache.org/jira/browse/HIVE-12809 > Project: Hive > Issue Type: Bug > Affects Versions: 2.0.0, 2.1.0 > Reporter: Gopal V > Assignee: Gopal V > Attachments: HIVE-12809.1.patch, HIVE-12809.2.patch > > > Coalesce can skip processing other columns, if all the input columns are > non-null. > Possibly retaining, isRepeating=true. -- This message was sent by Atlassian JIRA (v6.3.4#6332)