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fix: handle unparameterized interval_day type #178

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fix: handle unparameterized interval_day type #178

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6 changes: 6 additions & 0 deletions src/substrait/derivation_expression.py
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Original file line number Diff line number Diff line change
Expand Up @@ -151,6 +151,12 @@ def _evaluate(x, values: dict):
elif isinstance(
parametrized_type, SubstraitTypeParser.PrecisionIntervalDayContext
):
if parametrized_type.precision is None:
return Type(
interval_day=Type.IntervalDay(
nullability=nullability,
)
)
precision = _evaluate(parametrized_type.precision, values)
return Type(
interval_day=Type.IntervalDay(
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9 changes: 9 additions & 0 deletions tests/test_derivation_expression.py
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Original file line number Diff line number Diff line change
Expand Up @@ -129,6 +129,15 @@ def test_interval_day():
)


def test_interval_day_no_precision():
assert evaluate("interval_day") == Type(
interval_day=Type.IntervalDay(nullability=Type.NULLABILITY_REQUIRED)
)
assert evaluate("interval_day?") == Type(
interval_day=Type.IntervalDay(nullability=Type.NULLABILITY_NULLABLE)
)


def test_struct_simple():
"""Test simple struct with two i32 fields."""
result = evaluate("struct<i32, i32>", {})
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