Matt McCline created HIVE-15335:
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Summary: Fast Decimal
Key: HIVE-15335
URL: https://issues.apache.org/jira/browse/HIVE-15335
Project: Hive
Issue Type: Bug
Components: Hive
Reporter: Matt McCline
Assignee: Matt McCline
Priority: Critical
Replace HiveDecimal implementation that currently represents the decimal
internally as a BigDecimal with a faster version that does not allocate extra
objects
Replace HiveDecimalWritable implementation with a faster version that has new
mutable* calls (e.g. mutableAdd, mutableEnforcePrecisionScale, etc) and stores
the result as a fast decimal instead of a slow byte array containing a
serialized BigInteger.
Provide faster ways to serialize/deserialize decimals.
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