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new 6e4936d0fe8f [SPARK-54144][PYTHON] Short Circuit Eval Type Inferences
6e4936d0fe8f is described below
commit 6e4936d0fe8fef932c17a20260a227cdb32142eb
Author: Ruifeng Zheng <[email protected]>
AuthorDate: Sun Nov 2 20:32:19 2025 -0800
[SPARK-54144][PYTHON] Short Circuit Eval Type Inferences
### What changes were proposed in this pull request?
Short Circuit Eval Type Inferences:
### Why are the changes needed?
minor optimization that avoid unnecessary inference
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
CI
### Was this patch authored or co-authored using generative AI tooling?
No
Closes #52843 from zhengruifeng/short_circuit_type_infer.
Authored-by: Ruifeng Zheng <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>
---
python/pyspark/sql/pandas/typehints.py | 26 +++++++++++++++++---------
1 file changed, 17 insertions(+), 9 deletions(-)
diff --git a/python/pyspark/sql/pandas/typehints.py
b/python/pyspark/sql/pandas/typehints.py
index 18858ab0cf68..7c95feee0cfe 100644
--- a/python/pyspark/sql/pandas/typehints.py
+++ b/python/pyspark/sql/pandas/typehints.py
@@ -353,6 +353,9 @@ def infer_group_arrow_eval_type(
return_annotation, parameter_check_func=lambda t: t ==
pa.RecordBatch
)
)
+ if is_iterator_batch:
+ return PythonEvalType.SQL_GROUPED_MAP_ARROW_ITER_UDF
+
# Tuple[pa.Scalar, ...], Iterator[pa.RecordBatch] ->
Iterator[pa.RecordBatch]
is_iterator_batch_with_keys = (
len(parameters_sig) == 2
@@ -364,19 +367,21 @@ def infer_group_arrow_eval_type(
return_annotation, parameter_check_func=lambda t: t ==
pa.RecordBatch
)
)
-
- if is_iterator_batch or is_iterator_batch_with_keys:
+ if is_iterator_batch_with_keys:
return PythonEvalType.SQL_GROUPED_MAP_ARROW_ITER_UDF
# pa.Table -> pa.Table
is_table = (
len(parameters_sig) == 1 and parameters_sig[0] == pa.Table and
return_annotation == pa.Table
)
+ if is_table:
+ return PythonEvalType.SQL_GROUPED_MAP_ARROW_UDF
+
# Tuple[pa.Scalar, ...], pa.Table -> pa.Table
is_table_with_keys = (
len(parameters_sig) == 2 and parameters_sig[1] == pa.Table and
return_annotation == pa.Table
)
- if is_table or is_table_with_keys:
+ if is_table_with_keys:
return PythonEvalType.SQL_GROUPED_MAP_ARROW_UDF
return None
@@ -441,6 +446,9 @@ def infer_group_pandas_eval_type(
return_annotation, parameter_check_func=lambda t: t == pd.DataFrame
)
)
+ if is_iterator_dataframe:
+ return PythonEvalType.SQL_GROUPED_MAP_PANDAS_ITER_UDF
+
# Tuple[Any, ...], Iterator[pd.DataFrame] -> Iterator[pd.DataFrame]
is_iterator_dataframe_with_keys = (
len(parameters_sig) == 2
@@ -452,8 +460,7 @@ def infer_group_pandas_eval_type(
return_annotation, parameter_check_func=lambda t: t == pd.DataFrame
)
)
-
- if is_iterator_dataframe or is_iterator_dataframe_with_keys:
+ if is_iterator_dataframe_with_keys:
return PythonEvalType.SQL_GROUPED_MAP_PANDAS_ITER_UDF
# pd.DataFrame -> pd.DataFrame
@@ -462,13 +469,16 @@ def infer_group_pandas_eval_type(
and parameters_sig[0] == pd.DataFrame
and return_annotation == pd.DataFrame
)
+ if is_dataframe:
+ return PythonEvalType.SQL_GROUPED_MAP_PANDAS_UDF
+
# Tuple[Any, ...], pd.DataFrame -> pd.DataFrame
is_dataframe_with_keys = (
len(parameters_sig) == 2
and parameters_sig[1] == pd.DataFrame
and return_annotation == pd.DataFrame
)
- if is_dataframe or is_dataframe_with_keys:
+ if is_dataframe_with_keys:
return PythonEvalType.SQL_GROUPED_MAP_PANDAS_UDF
return None
@@ -512,11 +522,9 @@ def check_iterator_annotation(
def check_union_annotation(
annotation: Any, parameter_check_func: Optional[Callable[[Any], bool]] =
None
) -> bool:
- import typing
-
# Note that we cannot rely on '__origin__' in other type hints as it has
changed from version
# to version.
origin = getattr(annotation, "__origin__", None)
- return origin == typing.Union and (
+ return origin == Union and (
parameter_check_func is None or all(map(parameter_check_func,
annotation.__args__))
)
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