Allan Yan created HIVE-11033:
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Summary: BloomFilter index is not honored by ORC reader
Key: HIVE-11033
URL: https://issues.apache.org/jira/browse/HIVE-11033
Project: Hive
Issue Type: Bug
Affects Versions: 1.2.0
Reporter: Allan Yan
There is a bug in the org.apache.hadoop.hive.ql.io.orc.ReaderImpl class which
caused the bloom filter index saved in the ORC file not being used. The reason
is because the bloomFilterIndices variable defined in the SargApplier class
superseded from its parent class.
Here is one way to fix it
{noformat}
18:46 $ diff src/java/org/apache/hadoop/hive/ql/io/orc/RecordReaderImpl.java
src/java/org/apache/hadoop/hive/ql/io/orc/RecordReaderImpl.java.original
174d173
< bloomFilterIndices = new OrcProto.BloomFilterIndex[types.size()];
178c177
< sarg, options.getColumnNames(), strideRate, types, included.length,
bloomFilterIndices);
---
> sarg, options.getColumnNames(), strideRate, types, included.length);
204a204
> bloomFilterIndices = new OrcProto.BloomFilterIndex[types.size()];
673c673
< List<OrcProto.Type> types, int includedCount,
OrcProto.BloomFilterIndex[] bloomFilterIndices) {
---
> List<OrcProto.Type> types, int includedCount) {
677c677
< this.bloomFilterIndices = bloomFilterIndices;
---
> bloomFilterIndices = new OrcProto.BloomFilterIndex[types.size()];
{noformat}
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