Remus Rusanu created HIVE-7082:
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Summary: Vectorized parquet reader should create assigners only
for the columns it assigns, not for scratch columns
Key: HIVE-7082
URL: https://issues.apache.org/jira/browse/HIVE-7082
Project: Hive
Issue Type: Bug
Components: Query Processor
Affects Versions: 0.13.0, 0.14.0
Reporter: Remus Rusanu
Assignee: Remus Rusanu
Priority: Minor
The code in VectorizedParquetRecordReader.next and in
VectorColumnAssignFactory.buildAssigners iterates for all columns in the
vectorization context trying to build an assigner for it. Scratch columns do
not require assigners. Fix is to simply use the writables.length instead of
outputBatch.numCols.
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