[HIVE-2600] Enable/Add type-specific compression for rcfile

• Type: Sub-task
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Component/s: Query Processor, Serializers/Deserializers
• Assignee: Krishna Kumar
• Reporter: Krishna Kumar
• Created: 21/Nov/11 05:44
• Updated: 30/Apr/12 21:11
• Resolved: 24/Dec/11 21:43

Description

Enable schema-aware compression codecs which can perform type-specific compression on a per-column basis. I see this as in three-parts

1. Add interfaces for the rcfile to communicate column information to the codec

2. Add an "uber compressor" which can perform column-specific compression on a per-block basis. Initially, this can be config driven, but we can go for a dynamic implementation later.

3. A bunch of type-specific compressors

This jira is for the first part of the effort.