v0.9.0a2

[qinxuye]

This is the release notes of v0.9.0a2. See here for the complete list of solved issues and merged PRs.

New Features

• DataFrame
  • Add support for GroupBy.{ffill, bfill,fillna} (Add support for GroupBy.{ffill, bfill,fillna} #2639, thanks @Marascax!)
  • Add nunique support for DataFrameGroupBy (Add nunique support for DataFrameGroupBy #2662)
• Others
  • Add wheel support for Python 3.10 and drop Python 3.6 (Add wheel support for Python 3.10 and drop Python 3.6 #2622)

Enhancements

• Added merging small files support for md.{read_parquet, read_csv} (Added merging small files support for md.{read_parquet, read_csv} #2661)
• Add support for HTTP request rewriter (Add support for HTTP request rewriter #2664)
• Optimize filtering DataFrame with its fields (Optimize filtering DataFrame with its fields #2571)
• Add pyproject.toml to config build packages (Add pyproject.toml to config build packages #2674)

Bug fixes

• Fix backward compatibility for pandas 1.1 and 1.2 (Fix backward compatibility for pandas 1.1 and 1.2 #2624)
• Fix backward compatibility for pandas 1.0 (Fix backward compatibility for pandas 1.0 #2628)
• Fix NotImplementedError for mo.batch when single call not implemented (Fix NotImplementedError for mo.batch when single call not implemented #2635)
• Fix IndexError raise by aggregation of DataFrameGroupBy (Fix IndexError raise by aggregation of DataFrameGroupBy #2641)
• Fix compatibility for pandas 1.4 (Fix compatibility for pandas 1.4 #2650)
• Fix df.loc[:] to make sure same index_value key generated (Fix df.loc[:] to make sure same index_value key generated #2643)
• Fix aggregation with comparison (Fix aggregation with comparison #2647)
• Fix the wrong index_value generated by df.loc[:] (Fix the wrong index_value generated by df.loc[:] #2658)
• Fix optimizing DataFrame query with timestamp in conditions (Fix optimizing DataFrame query with timestamp in conditions #2671)
• Fix as_index when calling agg on SeriesGroupBy (Fix as_index when calling agg on SeriesGroupBy #2676)

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This discussion was created from the release v0.9.0a2.