Julian Hyde created CALCITE-565:
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Summary: Implement windowed aggregate in interpreter
Key: CALCITE-565
URL: https://issues.apache.org/jira/browse/CALCITE-565
Project: Calcite
Issue Type: Sub-task
Reporter: Julian Hyde
Assignee: Julian Hyde
Implement windowed aggregate (the Window relational expression) in the
interpreter.
Aggregate functions could be implemented by generating Java ASTs (via
AggImplementor) but it would be simpler to implement them using
AggregateFunctionImpl, as if they were user-defined aggregates. (AggregateNode
already does this.)
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