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Posted to dev@orc.apache.org by "Panagiotis Garefalakis (Jira)" <ji...@apache.org> on 2020/12/27 20:40:00 UTC

[jira] [Created] (ORC-705) Predicate evaluation should take into account writer calendar

Panagiotis Garefalakis created ORC-705:
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             Summary: Predicate evaluation should take into account writer calendar
                 Key: ORC-705
                 URL: https://issues.apache.org/jira/browse/ORC-705
             Project: ORC
          Issue Type: Bug
          Components: Reader
    Affects Versions: 1.6.6, 1.7.0
            Reporter: Panagiotis Garefalakis
            Assignee: Panagiotis Garefalakis


RecordReaderImp should pass down the writer calendar info (writerUsedProlepticGregorian) when evaluating predicates to make sure column stats are properly deserialized (affects TimestampStatistics).

Currently, the reader assumes that a writer always uses a ProlepticGregorian calendar for timestamp stats which is not always the case.

Discovered this issue when working on HIVE-23553



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