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Prasanth Jayachandran commented on HIVE-9660: --------------------------------------------- Left some more comments in RB. Will it be easy to add unit tests for these? > store end offset of compressed data for RG in RowIndex in ORC > ------------------------------------------------------------- > > Key: HIVE-9660 > URL: https://issues.apache.org/jira/browse/HIVE-9660 > Project: Hive > Issue Type: Bug > Reporter: Sergey Shelukhin > Assignee: Sergey Shelukhin > Attachments: HIVE-9660.01.patch, HIVE-9660.02.patch, > HIVE-9660.03.patch, HIVE-9660.04.patch, HIVE-9660.05.patch, > HIVE-9660.06.patch, HIVE-9660.07.patch, HIVE-9660.07.patch, > HIVE-9660.08.patch, HIVE-9660.09.patch, HIVE-9660.patch, HIVE-9660.patch > > > Right now the end offset is estimated, which in some cases results in tons of > extra data being read. > We can add a separate array to RowIndex (positions_v2?) that stores number of > compressed buffers for each RG, or end offset, or something, to remove this > estimation magic -- This message was sent by Atlassian JIRA (v6.3.4#6332)