v0.8.1

[qinxuye]

This is the release notes of v0.8.1. See here for the complete list of solved issues and merged PRs.

New Features

• DataFrame
  • Add support for GroupBy.{ffill, bfill,fillna} ([BACKPORT] Add support for GroupBy.{ffill, bfill,fillna} (#2639) #2657, thanks @Marascax!)
  • Add nunique support for DataFrameGroupBy ([BACKPORT] Add nunique support for DataFrameGroupBy (#2662) #2667)

Enhancements

• Add support for HTTP request rewriter ([BACKPORT] Add support for HTTP request rewriter (#2664) #2665)
• Add merging small files support for md.{read_parquet, read_csv} ([BACKPORT] Add merging small files support for md.{read_parquet, read_csv} (#2661) #2669)
• Optimize filtering DataFrame with its fields ([BACKPORT] Optimize filtering DataFrame with its fields (#2571) #2668)

Bug fixes

• Allow specifying multiple supervisor processes ([BACKPORT] Allow specifying multiple supervisor processes (#2452) #2625)
• Fix backward compatibility for pandas 1.0 ([BACKPORT] Fix backward compatibility for pandas 1.0 (#2628) #2630)
• Fix NotImplementedError for mo.batch when single call not implemented ([BACKPORT] Fix NotImplementedError for mo.batch when single call not implemented (#2635) #2637)
• Fix compatibility for pandas 1.4 ([BACKPORT] Fix compatibility for pandas 1.4 (#2650) #2652)
• Fix IndexError raise by aggregation of DataFrameGroupBy ([BACKPORT] Fix IndexError raise by aggregation of DataFrameGroupBy (#2641) #2653)
• Fix df.loc[:] to make sure same index_value key generated ([BACKPORT] Fix df.loc[:] to make sure same index_value key generated (#2643) #2654)
• Fix aggregation with comparison ([BACKPORT] Fix aggregation with comparison (#2647) #2655)
• Fix the wrong index_value generated by df.loc[:] ([BACKPORT] Fix the wrong index_value generated by df.loc[:] (#2658) #2666)
• Fix as_index when calling groupby-agg ([BACKPORT] Fix as_index when calling groupby-agg (#2676) #2678)

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This discussion was created from the release v0.8.1.