[HIVE-9978] LLAP: OrcColumnVectorProducer should handle reading isPresent columns only

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: llap
• Fix Version/s: llap
• Component/s: File Formats
• Assignee: Sergey Shelukhin
• Reporter: Gopal Vijayaraghavan
• Created: 16/Mar/15 16:42
• Updated: 17/Feb/16 01:32
• Resolved: 17/Mar/15 20:40

Description

LlapInputFormat does not understand the difference between empty columns list and null columns list.

The empty columns list indicates no columns read except the root struct isPresent column, while the null columns list indicates that all columns are being read.

select count(1) from store_sales join date_dim on ss_sold_date_sk = d_date_sk where d_date = '1998-01-01';
...
Caused by: java.lang.NullPointerException
        at org.apache.hadoop.hive.llap.io.decode.OrcColumnVectorProducer.createReadPipeline(OrcColumnVectorProducer.java:72)
        at org.apache.hadoop.hive.llap.io.api.impl.LlapInputFormat$LlapRecordReader.startRead(LlapInputFormat.java:181)
        at org.apache.hadoop.hive.llap.io.api.impl.LlapInputFormat$LlapRecordReader.next(LlapInputFormat.java:140)
        at org.apache.hadoop.hive.llap.io.api.impl.LlapInputFormat$LlapRecordReader.next(LlapInputFormat.java:99)
        at org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.doNext(HiveContextAwareRecordReader.java:350)
        ... 22 more

Issue Links

• contains: HIVE-9986 LLAP: EOFException in reader