Penglei Shi created ORC-1121:
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Summary: 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
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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