feat: arrow unique, is_duplicated, is_unique
#565
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MarcoGorelli
approved these changes
Jul 21, 2024
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| col_token = generate_unique_token(n_bytes=8, columns=columns) | ||
| row_count = ( | ||
| df.append_column(col_token, pa.array(np.arange(len(self)))) | ||
| .group_by(columns) | ||
| .aggregate([(col_token, "count")]) | ||
| ) | ||
| is_duplicated = pc.greater( | ||
| df.join( | ||
| row_count, keys=columns, right_keys=columns, join_type="inner" | ||
| ).column(f"{col_token}_count"), | ||
| 1, | ||
| ) |
There was a problem hiding this comment.
Not too proud of the join, but alternative was looping through value counts :|
|
Was this the fastest review ever?! 😂😂 |
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