Few code improvements in the ql and serde packages.
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Key: HIVE-2080
URL: https://issues.apache.org/jira/browse/HIVE-2080
Project: Hive
Issue Type: Bug
Components: Query Processor, Serializers/Deserializers
Affects Versions: 0.7.0
Environment: Hadoop 0.20.1, Hive0.7.0 and SUSE Linux Enterprise Server
10 SP2 (i586) - Kernel 2.6.16.60-0.21-smp (5).
Reporter: Chinna Rao Lalam
Assignee: Chinna Rao Lalam
Few code improvements in the ql and serde packages.
1) Little performance Improvements
2) Null checks to avoid NPEs
3) Effective varaible management.
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