yangfang created HIVE-12877:
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Summary: Hive use index for queries will lose some data if the
Query file is compressed.
Key: HIVE-12877
URL: https://issues.apache.org/jira/browse/HIVE-12877
Project: Hive
Issue Type: Bug
Components: Indexing
Affects Versions: 1.2.1
Environment: This problem exists in all Hive versions.no matter what
platform
Reporter: yangfang
Hive created the index using the extracted file length when the file is the
compressed,
but when to divide the data into pieces in MapReduce,Hive use the file length
to compare with the extracted file length,if
If it found that these two lengths are not matched, It filters out the file.So
the query will lose some data
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