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selvaganesang <selva.govindarajan@esgyn.com>
committed
on 26 Jan 18
[TRAFODION-2917] Refactor Trafodion implementation of hdfs scan for text formatted hive tables
Part-1 changes.

Created a new class org.traf… Show more
[TRAFODION-2917] Refactor Trafodion implementation of hdfs scan for text formatted hive tables

Part-1 changes.

Created a new class org.trafodion.sql.HDFSClient. Any direct HDFS access

will be routed to this class via JNI instead of using libhdfs.

Modified the existing code expect for the following to route the HDFS request via this class

1. LOB access

2. Direct HDFS scan of the table

3. Sample data creation during update stats

Added a new class org.trafodio.sql.HdfsScan for scanning one or many ranges of a Hive

text formatted table. This class will be used for Direct HDFS scan in near future.

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