Julian Hyde created OPTIQ-405:
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Summary: Combine RelOptCluster, RelOptQuery into RelOptPlanner
Key: OPTIQ-405
URL: https://issues.apache.org/jira/browse/OPTIQ-405
Project: Optiq
Issue Type: Bug
Reporter: Julian Hyde
Assignee: Julian Hyde
A RelNode belongs to a RelOptCluster, a RelOptCluster belongs to a RelOptQuery,
and a RelOptQuery belongs to a RelOptPlanner. There is very little information
in RelOptCluster and RelOptQuery that is not in RelOptPlanner, so they probably
should be combined into it.
Also, the trait set of a RelOptPlanner is constant throughout its existence. If
you want to switch to a new set of traits, you have to re-create all RelNodes.
We should re-consider this aspect of the life-cycle.
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