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https://issues.apache.org/jira/browse/ORC-705?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Panagiotis Garefalakis updated ORC-705:
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Description:
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 while working on HIVE-23553
was:
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
> 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
> Priority: Major
>
> 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 while working on HIVE-23553
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