Owen O'Malley created HIVE-9451: ----------------------------------- Summary: Add max size of column dictionaries to ORC metadata Key: HIVE-9451 URL: https://issues.apache.org/jira/browse/HIVE-9451 Project: Hive Issue Type: Improvement Reporter: Owen O'Malley
To predict the amount of memory required to read an ORC file we need to know the size of the dictionaries for the columns that we are reading. I propose adding the number of bytes for each column's dictionary to the stripe's column statistics. The file's column statistics would have the maximum dictionary size for each column. -- This message was sent by Atlassian JIRA (v6.3.4#6332)