Julian Hyde created OPTIQ-416:
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             Summary: Execute logical RelNodes using an interpreter
                 Key: OPTIQ-416
                 URL: https://issues.apache.org/jira/browse/OPTIQ-416
             Project: Optiq
          Issue Type: Bug
            Reporter: Julian Hyde
            Assignee: Julian Hyde


Add an interpreter that can evaluate logical RelNodes (such as FilterRel, 
TableAccessRel).

The motivation is similar to OPTIQ-107 but this feature request would interpret 
logical RelNodes, not RelNodes that implement EnumerableRel. This case would 
eliminate planning time as well as the janino step.

We should explicit sources, sinks and start/run/stop methods. A bit less 
efficient, but gives us the opportunity for detailed tracing and even 
single-stepping.

Put code in a new package net.hydromatic.optiq.impl.interpreter.



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