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The "Pig070IncompatibleChanges" page has been changed by OlgaN. http://wiki.apache.org/pig/Pig070IncompatibleChanges?action=diff&rev1=26&rev2=27 -------------------------------------------------- || Data compression becomes load/store function specific || Handling Compressed Data || Unknow but hopefully low || If compression is needed the underlying Input/Output format would need to support it || || || Bzip compressed files can no longer have .bz extension || Handling Compressed Data || Low || 1. Rename existing .bz files to .bz2 files. 2. Update scripts to read/write files with bz2 extension || This change is due to the fact that Text{Input/Output}Format only supports bz2 extension || || Switch to Hadoop's local mode || Local Mode || Low || None || Main change is 10-20x performance slowdown. Also, local mode now uses the same UDF interfaces to execute UDFs as the MR mode. || + || Load-Stream or Stream-Store optimizations no longer supported || Streaming || Low to None || None || This feature was never documented so it is unlikely it was ever used || + || No longer support serialization and decerialization via load/store functions || Streaming || Unknown but hopefully low to medium || Implement new Serializer/Deserializer interfaces for non-standard serialization || || + || Removed BinaryStorage builtin || Streaming || Low to None || None || As far as we know, this class was only used internally by streaming || == Changes to the Load and Store Functions ==