Jihoon Son created TAJO-1456:
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Summary: Add a filter pushdown optimization phase after join
ordering
Key: TAJO-1456
URL: https://issues.apache.org/jira/browse/TAJO-1456
Project: Tajo
Issue Type: Improvement
Components: planner/optimizer
Reporter: Jihoon Son
Fix For: 0.11.0
Currently, filter pushdown optimization is conducted only before join order
optimization.
However, the join order can be changed after its optimization, and thus the
best position for each predicate will also be changed.
This is why we need another filter pushdown phase after join order optimization.
Please refer to the discussion at https://github.com/apache/tajo/pull/384.
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