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fix division by zero error #30

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merged 2 commits into from
Dec 2, 2024
Merged

fix division by zero error #30

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b2d6742
fix error
votrou Nov 27, 2024
e8ed144
cleanup
votrou Nov 27, 2024
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19 changes: 11 additions & 8 deletions python/ray/data/datasource/parquet_base_datasource.py
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Original file line number Diff line number Diff line change
Expand Up @@ -77,12 +77,15 @@ def _open_input_source(
# Parquet requires `open_input_file` due to random access reads
return filesystem.open_input_file(path, **open_args)

def calculate_nulls(self, table):
total = 0
null = 0
for column in table.columns:
null += column.null_count
total += len(column)

percent = (total - null) / total
def calculate_nulls(self, table):
total = 0
null = 0
for column in table.columns:
null += column.null_count
total += len(column)

if total == 0:
return

percent = (total - null) / total
self.null_count_metric.observe(percent)