Julian Hyde created CALCITE-2127:
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Summary: In Interpreter, allow a node to have more than one
consumer
Key: CALCITE-2127
URL: https://issues.apache.org/jira/browse/CALCITE-2127
Project: Calcite
Issue Type: Bug
Reporter: Julian Hyde
Assignee: Julian Hyde
In Interpreter, allow a node to have more than one consumer. In other words,
the graph may be a DAG not just a tree.
If a node has more than one consumer, its Sink is a DuplicatingSink that writes
to multiple consumers. Each has an independent ArrayDeque.
This change will only be exercised when CALCITE-2116 is fixed, and the planner
starts producing DAG plans.
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