Yin Huai created HIVE-6632: ------------------------------ Summary: ORC should be able to only read needed fields in a complex column Key: HIVE-6632 URL: https://issues.apache.org/jira/browse/HIVE-6632 Project: Hive Issue Type: Improvement Reporter: Yin Huai
Currently, we use a string of ids to record needed columns. However, this string cannot record needed fields of a complex column. Although ORC decomposes a complex column to multiple sub-columns, it has to load the entire complex column if only a single field of this complex column is needed. -- This message was sent by Atlassian JIRA (v6.2#6252)