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https://issues.apache.org/jira/browse/ORC-1121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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William Hyun closed ORC-1121.
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> Pushdown filters don't evaluate due to wrong column-conversion-safety judgment
> ------------------------------------------------------------------------------
>
> Key: ORC-1121
> URL: https://issues.apache.org/jira/browse/ORC-1121
> Project: ORC
> Issue Type: Bug
> Components: Java
> Affects Versions: 1.6.11
> Reporter: Penglei Shi
> Assignee: Penglei Shi
> Priority: Major
> Fix For: 1.7.4, 1.6.14
>
>
> RecordReaderImpl::pickRowGroups() will check if filter-column is safe for ppd
> evaluation with file column id, but the parameter of
> SchemaEvolution::isPPDSafeConversion is reader column id, which is different
> from file column id, and this causes pushed filters can't be evaluated and
> recordReader can't skip row groups which are not matched.
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