PIG-4624: Error on ORC empty file without schema.

PIG-4628: Pig 0.14 job with order by fails in mapreduce mode with Oozie.

PIG-4679: Performance degradation due to InputSizeReducerEstimator since PIG-3754.

PIG-4683: Nested order is broken after PIG-3591 in some cases.

PIG-4688: Limit followed by POPartialAgg can give empty or partial results in Tez.

PIG-4696: Empty map returned by a streaming_python udf wrongly contains a null key.

PIG-4714: Improve logging across multiple components with callerId.

PIG-4715: Pig 0.14 does not work with Tez 0.5.4.

PIG-156: Pig command fails because the input line is too long

PIG-4334: PigProcessor does not set pig.datetime.default.tz

PIG-4342: Pig 0.14 cannot identify the uppercase of DECLARE and DEFAULT

PIG-4377: Skewed outer join produce wrong result in some cases