arrow: don't filter against empty dataset #429
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Pull Request Overview
This pull request adds an early return for empty Arrow tables to prevent unnecessary filtering operations. The change prevents potential errors or inefficient operations when attempting to filter against an empty dataset.
- Added empty table check after reading the Arrow file
- Returns an empty list immediately when the table has no records
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| with pa.memory_map(path, "rb") as mmap: | ||
| reader: ipc.RecordBatchFileReader = ipc.open_file(mmap) | ||
| table = reader.read_all() | ||
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