Paul Wu created SPARK-7746:
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Summary: SetFetchSize for JDBCRDD's prepareStatement
Key: SPARK-7746
URL: https://issues.apache.org/jira/browse/SPARK-7746
Project: Spark
Issue Type: New Feature
Components: SQL
Affects Versions: 1.3.1, 1.3.0
Reporter: Paul Wu
The prepareStatement created internal to compute() method in JDBCRDD should
have some options that the setFetchSize() can be set. We found that the
parameter can affect Oracle DB tremendously. With current implementation, we
have no way to set the size.
One of my team did his implementation, and we found 10X improvement by setting
the size to a proper number.
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