[CASSANDRA-3280] Pig Storage Handler: Add >=0.8.1 types, Guess right type for Key in Schema

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 0.8.8, 1.0.1
• Assignee: Unassigned
• Reporter: Steeve Morin

Reviewers

Brandon Williams

• Created: 29/Sep/11 22:36
• Updated: 16/Apr/19 09:32
• Resolved: 14/Oct/11 21:57

Description

Various patches in the Pig Storage Handler:

• correctly guess the right Pig type for the Row Key
• add support for FloatType, DoubleType, UUIDType (as String) and DateType (as time epoch) (removed in v2 because it would break when storing data back in Cassandra)
• add support to specify correct type comparator in SlicePredicate

SlicePredicate comparator:
For instance:

raw = LOAD 'cassandra://ks/cf?slice_start=2.5&slice_end=5.3&comparator=DoubleType' USING CassandraStorage() AS ();

It's an optional parameter. If it's not present, it will default to BytesType. Which mean you must use hex strings.
Hence slice_start=00&slice_end=FF isn't the same as slice_start=00&slice_end=FF&comparator=AsciiType !