Hyunsik Choi created TAJO-201:
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Summary: Physical execution plan should be reused for same task
Key: TAJO-201
URL: https://issues.apache.org/jira/browse/TAJO-201
Project: Tajo
Issue Type: Improvement
Components: worker
Reporter: Hyunsik Choi
Fix For: 0.3-incubating
In worker, one physical execution plan is generated for each task. If we reuse
this, we can have more optimization opportunities. For example, a broadcast
table can be shared among all tasks executed in the same worker. Also, it's
initialization cost and deserialization of json can be eliminated.
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