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Type:
Improvement
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Status: Open
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Priority:
Major
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Resolution: Unresolved
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Affects Version/s: None
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Fix Version/s: None
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Component/s: Planner/Optimizer
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Labels:None
Currently the cross join is allowed only at the beginning of a query plan. That is, it is allowed only when at least one of its inputs is a simple relation scan.
This prevents Tajo from executing several popular queries like TPC-DS Q28.