Julian Hyde created CALCITE-544:
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Summary: Implement Union in Interpreter
Key: CALCITE-544
URL: https://issues.apache.org/jira/browse/CALCITE-544
Project: Calcite
Issue Type: Bug
Reporter: Julian Hyde
Assignee: Julian Hyde
Interpreter can handle scan, filter, project, values and (with CALCITE-543)
aggregate. This task would add union.
You probably need to add a method {{public void visit(Union union)}} to
{{CoreCompiler}}. Add tests to InterpreterTest for union and union all.
This is a good task for a beginner (as evidenced by the "newbie" label).
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