BELUGA BEHR created HIVE-18603:
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Summary: Use Hash For Partition HDFS File Path
Key: HIVE-18603
URL: https://issues.apache.org/jira/browse/HIVE-18603
Project: Hive
Issue Type: Improvement
Components: HiveServer2
Affects Versions: 2.3.0, 1.2.0, 3.0.0, 2.4.0
Reporter: BELUGA BEHR
Currently, for partitioned tables, Hive uses the literal value of each
partition in the HDFS file path. Instead, perhaps we can use a hash value so
that:
# The partitioned values are obscured to a casual observer in HDFS
# Remove the chance of having a very long HDFS file name when faced with a
very long partitioned value
# Remove the needs to worry about special characters in the partitioned path
name as the hash value would only be HEX string values.
The suggestion here is that we retain the partition values, just as is done
now, but the default HDFS location for each partition will use the hash of the
value instead of the value itself.
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