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fix: improve df to records performance #28512

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merged 1 commit into from
May 15, 2024
Merged

fix: improve df to records performance #28512

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12 changes: 7 additions & 5 deletions superset/dataframe.py
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Original file line number Diff line number Diff line change
Expand Up @@ -48,8 +48,10 @@ def df_to_records(dframe: pd.DataFrame) -> list[dict[str, Any]]:
logger.warning(
"DataFrame columns are not unique, some columns will be omitted."
)
columns = dframe.columns
return list(
dict(zip(columns, map(_convert_big_integers, row)))
for row in zip(*[dframe[col] for col in columns])
)
records = dframe.to_dict(orient="records")

for record in records:
for key in record:
record[key] = _convert_big_integers(record[key])

return records
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