[HIVE-6678] hive.optimize.index.filter breaks StorageHandler protocol

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Query Processor, StorageHandler
• Assignee: Unassigned
• Reporter: Nick Dimiduk
• Created: 14/Mar/14 23:14
• Updated: 14/Mar/14 23:14

Description

StorageHandler protocol allows for a negotiation between the StorageHandler and the query processor regarding which predicates can be pushed down into storage and which must be handled by the runtime. The enhancement enabled in HIVE-2036 by hive.optimize.index.filter neglects this negotiation, passing the entire predicate down to StorageHandler even after pieces have been negotiated away. This breaks the HBaseStorageHandler because it assumes the protocol is enforced. I've posted HIVE-6650 to make HBaseStorageHandler more flexible, not assume the protocol is enforced, but this is really only a bandaid. The real solution is to correct the logic above the StorageHandler (presumably in OpProcFactory).