samster25 commented on code in PR #1427:
URL: https://github.com/apache/iceberg-python/pull/1427#discussion_r1888474960
##########
pyiceberg/table/__init__.py:
##########
@@ -1423,6 +1451,66 @@ def plan_files(self) -> Iterable[FileScanTask]:
for data_entry in data_entries
]
+ def _target_split_size(self) -> int:
+ table_value = property_as_int(
+ self.table_metadata.properties, TableProperties.READ_SPLIT_SIZE,
TableProperties.READ_SPLIT_SIZE_DEFAULT
+ )
+ return property_as_int(self.options, TableProperties.READ_SPLIT_SIZE,
table_value) # type: ignore
+
+ def _loop_back(self) -> int:
+ table_value = property_as_int(
+ self.table_metadata.properties,
TableProperties.READ_SPLIT_LOOKBACK, TableProperties.READ_SPLIT_LOOKBACK_DEFAULT
+ )
+ return property_as_int(self.options,
TableProperties.READ_SPLIT_LOOKBACK, table_value) # type: ignore
+
+ def _split_open_file_cost(self) -> int:
+ table_value = property_as_int(
+ self.table_metadata.properties,
+ TableProperties.READ_SPLIT_OPEN_FILE_COST,
+ TableProperties.READ_SPLIT_OPEN_FILE_COST_DEFAULT,
+ )
+ return property_as_int(self.options,
TableProperties.READ_SPLIT_OPEN_FILE_COST, table_value) # type: ignore
+
+ def plan_task(self) -> Iterable[CombinedFileScanTask]:
Review Comment:
Yes, we perform our own Plan Files splitting and merging. We create an
iterator from pyiceberg where @kevinjqliu linked the code. But during our own
optimization passes we perform fusion of files as well as splitting by row
group.
The logic for that can be found here
https://github.com/Eventual-Inc/Daft/blob/e148248dae8af90c8993d2ec6b2f471521c0a7f2/src/daft-scan/src/scan_task_iters.rs#L181
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