Julian Hyde created CALCITE-6459:
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Summary: Measures inside structured types (ROW, ARRAY, MAP)
Key: CALCITE-6459
URL: https://issues.apache.org/jira/browse/CALCITE-6459
Project: Calcite
Issue Type: Improvement
Reporter: Julian Hyde
Decide whether it is valid for measures to occur inside structured types (ROW,
ARRAY, MAP). If invalid, throw a validation error; if valid, change the planner
to make such queries work.
A measure can occur within a ROW (struct) type because measures are part of a
table's row type. It is more difficult to see measures in arrays or maps,
because they would have to be treated as values (similar to lambdas) and could
not be expanded at compile time.
Note that {{SqlTypeUtil.fromMeasure}} only handles struct types currently.
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