[HIVE-22958] Extend storage-api to expose FilterContext

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Component/s: storage-api
• Assignee: Panagiotis Garefalakis Assign to me
• Reporter: Panagiotis Garefalakis
• Created: 02/Mar/20 15:37
• Updated: 02/Mar/20 15:40
• Resolved: 02/Mar/20 15:40

Description

To enable row-level filtering at the ORC level ORC-577, or as an extension ProDecode MapJoin HIVE-22731 we need a common context class that will hold all the needed information for the filter.

I propose this class to be part of the storage-api – similar to VectorizedRowBatch class and hold the information below:

• A boolean variable showing if the filter is enabled
• A int array storing the row Ids that are actually selected (passing the filter)
• An int variable storing the the number or rows that passed the filter