Fokko commented on code in PR #539:
URL: https://github.com/apache/iceberg-python/pull/539#discussion_r1876738534
##########
pyiceberg/transforms.py:
##########
@@ -766,6 +858,47 @@ def _truncate_number(
return None
+def _truncate_number_strict(
+ name: str, pred: BoundLiteralPredicate[L], transform:
Callable[[Optional[L]], Optional[L]]
+) -> Optional[UnboundPredicate[Any]]:
+ boundary = pred.literal
+
+ if not isinstance(boundary, (LongLiteral, DecimalLiteral, DateLiteral,
TimestampLiteral)):
+ raise ValueError(f"Expected a numeric literal, got: {type(boundary)}")
+
+ if isinstance(pred, BoundLessThan):
+ return LessThan(Reference(name), _transform_literal(transform,
boundary))
+ elif isinstance(pred, BoundLessThanOrEqual):
+ return LessThan(Reference(name), _transform_literal(transform,
boundary.increment())) # type: ignore
+ elif isinstance(pred, BoundGreaterThan):
+ return GreaterThan(Reference(name), _transform_literal(transform,
boundary))
+ elif isinstance(pred, BoundGreaterThanOrEqual):
+ return GreaterThan(Reference(name), _transform_literal(transform,
boundary.decrement())) # type: ignore
Review Comment:
Hmm, you might be onto something here:
https://github.com/apache/iceberg-python/blob/88c4bad1d95175c3672bf7c47cba22ca803efcca/tests/test_transforms.py#L1006-L1009
https://github.com/apache/iceberg/blob/d402f83fc7b224b21242c506cf503e5bcbc8c867/api/src/test/java/org/apache/iceberg/transforms/TestDatesProjection.java#L139-L140
Luckily this code is not yet used, I'll write a patch tomorrow 👍
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